Four animated characters with purple and black clothing, posing confidently with arm gestures, set against a vibrant purple and pink digitally styled background.

Cromerone

JOB PORTFOLIO

Digital illustration of a smiling woman with long wavy brown to blonde hair, wearing glasses, a black floral dress, and black lace choker with a large oval gemstone pendant, against a purple striped background. Cromerone. Thea Yildirim. Artist.

Thea Yildirim

Hii! I’m a freelance 2D and 3D artist with a focus on creating expressive illustrations, engaging character designs, and occasional background art. I enjoy bringing ideas to life through stylized visuals, joyfull designs, and attention to detail.

2D Art

Genre
Side Scroller Puzzle Game

Story

Decades ago, three gods—Vumos, Ulerus, and Betin—watched over the world in harmony. Ulerus, the wisest, governed the waters and blessed the land with rain. Betin, the gentlest, nurtured nature and cared for its creatures. Vumos, the bravest, commanded the heat and illuminated the land with his light.

One day, however, this harmony was shattered. Betin made a grave mistake: one of the sacred seeds meant to create life split in two, and the pieces were separated.

Over the years, each seed grew independently into magnificent trees. These are now known as Syldite and Vitar—the great Trees of Owlberry, life-givers that purify the earth. Among the many creatures they bring forth are the Gaura, guardians of the forest who protect the trees.

As centuries passed, the Gaura noticed the trees beginning to decay. Fearing for their survival, they dedicated themselves to finding a way to save Syldite and Vitar, for the fate of the forest and all life within it now rested in their hands.

Roots of Owlberry - Game Concept

Series of three blue line drawings of a small girl in different stages of spinning inside circles with spike-like markings, illustrating a process or sequence.

Three cartoon mice splashing in water, holding umbrellas.

Diagram showing steps to make lemonade. Starting with a lemon and water, then adding sugar, stirring, and serving in a glass.

Step-by-step illustration of a plant growing process from seed to mature plant, including stages of germination, sprouting, seedling, mature plant, flowering, pollination by insects, and seed dispersal by water.

Sketch of a fairy tale scene with a mushroom house on a stone foundation, surrounded by grass; woodland creatures include a small owl and several mushrooms with faces, some with musical notes, and a tiny character with a friendly expression.

A diagram showing the differences between aerobic and anaerobic respiration. Aerobic respiration involves glucose and oxygen, producing carbon dioxide, water, and energy. Anaerobic respiration occurs without oxygen, and produces less energy, often creating byproducts like lactic acid or alcohol.

Line drawing of various insects, including a spider, a bee, a fly, a beetle, and a dragonfly, all outlined in blue.

A timeline diagram showing the progression from website visits to online sales, including stages: website visits, product viewing, adding to cart, checkout, and purchase, with arrows indicating flow between stages.

Nightmare of the Future - Game Concept

Genre
Single-player Stealth Horror Game

Story

For years, Castillian has promised endless clean energy—but beneath their neon-lit facilities lurks something far more sinister. Their power does not come from machines alone; it is siphoned from ancient, otherworldly entities slumbering deep beneath the earth. These beings, known only through fragmented records, can warp reality itself—bending minds, reshaping matter, and whispering through every crack in the world.

As Castillian’s influence expanded, entire districts began to experience strange and disturbing phenomena:
• Citizens vanishing without a trace
• Glitches in reality where time loops or streets twist into impossible shapes
• Sudden energy blackouts followed by sightings of indescribable creatures
• Corporate agents with empty eyes, speaking in voices not their own

The player steps into the role of an independent investigator who receives an anonymous warning: Castillian is on the verge of something catastrophic. Hidden deep within their main facility lies a massive energy reactor—not a machine, but a ritual engine designed to awaken a being older than civilization itself.

Line drawing of six different houseplants on a gray background, including bamboo, pothos, monstera, aloe vera, begonias, and a flowering plant with tall spikes.

Concept art of three futuristic characters, one female and two male, with detailed costumes and accessories, showing a mask, see-through gloves, and tactical gear, with annotations about speaking with mask and see-through features.

Architectural blueprint of a building floor plan with rooms, hallways, and central courtyard with a tree and small plants.

Technical drawing of a bathroom space: a wall-mounted light fixture, a tabletop with a sliding cover, a screen enclosure with a support base, and two configurations of a small, angular tablet device labeled as on and off, with a detailed cut-through diagram of the tablet.

Three characters with cybernetic arms and futuristic clothing, including a man in a suit, a woman in a dress with a jacket, and another woman in a jumpsuit with cyber enhancements.

Blueprint drawing of a gaming setup, including a shelf, fence, glass, wall shelves, top shelf, and two screens labeled Screen U2 and Screen U3, all depicted with detailed technical lines and annotations.

Line drawing of a woman with a short hairstyle, blending human and robotic features, wearing a suit with rolled-up sleeves, with a robotic arm visible on her right side.

Genre
Rogue-like side-scroller with Danmaku (Bullet-Hell) elements

Story

In the distant future, around the year 2400, a procedural learning project has been launched with the goal of creating the perfect soldier. To achieve this, a researcher named Matrona was commissioned by the military to design a simulation containing six agents, from which a single victor would emerge. That victor would become the blueprint for the personality software to be implemented in future elite soldiers.

Within the simulation, the agents are forced to fight until only one remains. Each time a winner is determined, the program resets, generating a new scenario while preserving fragments of the agents’ memories and combat experience. The system functions much like procedural learning—or evolution itself—where only the most successful entity survives to shape the next iteration.

The project is expected to conclude once one of the agents manages to defeat the outdated software currently used in military androids. However, the plan unravels when an opposing nation deploys an undetected malware, triggering an entirely new set of problems.

Matroshka - Game PROTOTYPE

A character in futuristic armor with a gray and black color scheme, blue accents, long white hair, and facial scars, stands in a serious pose against a plain background.

An illustration of an older man with gray hair and a mustache, dressed in futuristic armor, standing against a gray background.

Sketch of a male character with dreadlocks holding a headgear or weapon, dressed in futuristic or fantasy attire, standing confidently.

Line drawing of traditional Asian architectural and decorative elements, including pagoda-style roofs, lanterns, tables, crates, and decorative objects in purple outlines on a gray background.

Blueprint-style drawing of a building with detailed windows, a roof, and additional structures nearby, including a bench, a small rectangular object, and a large cylinder.

Outline drawing of various vintage and historic objects including a church clock tower, a classic car, a street lamp, a house with a decorative roof, a vintage automobile, and a street sign, all in blue outline.

Line drawings of traditional Chinese-style pagoda, street lamps, and entrance gate, with some purple trees and a black arrow pointing to a lamp.

Outline blueprint of a historic building with arched windows, balcony, and decorative roof details.

Line drawing of a four-story building with six arched windows, two balconies, a set of double doors at the entrance, and decorative molding at the roofline.

Sketches of various trees and rocks with red leaves on a light gray background.

Pixel art scene of a bridge over a river at sunset, with two characters standing on the bridge, surrounded by rocks and trees.

A digital illustration of Asian-style pagodas and buildings with traditional architectural features, including curved roofs and decorative details, set against a black background.

Drawing of a traditional Japanese building with ornate details and a curved roof

A close-up of green painted wooden planks.

Tree with a large, leafy canopy and exposed roots growing over rocks.

A stylized illustration of a tree with a twisting trunk and lush green foliage.

PizzaApocalypse

Genre
Top down shooter, Shoot ’em up, Bullet Hell

Story

Katarina Kantina and Manfred Mensa are the staff members of the school cafeteria. All week long, they serve meals to the students. Every day feels the same—except today. When Katarina glances at the calendar, a shiver runs down her spine.
It’s Pizza Day!

She quickly alerts her colleague, and together they brace themselves for the incoming chaos.
On Pizza Day, the students completely lose control. They run, push, and shove their way to the counter just to get a slice. Someone was even nearly trampled once!

There’s only one way to keep the wild crowd calm:
Everyone must get a slice of pizza!

Animated scene of two workers behind a pizza counter serving pizza to a crowd of diverse customers in a restaurant. The crowd appears upset, with some raising fists or arms. The restaurant has wooden decor and a sign that reads 'PIZZAPOKALYPSE' with a pizza graphic.

A skateboard rack holding a skateboard with an orange deck.

A pixel art-style restaurant interior with a pizza counter, tables with attached chairs, three open kitchen stations, a closed kitchen with a red brick chimney, a fridge, and a door. The right side features scores and a small menu, with a row of glasses on the wall and flags on the ceiling.

Cartoon-style victory screen with two characters in police uniforms, one female and one male, flexing their muscles in triumph. A large text box in the center reads 'YOU WIN!' in pixelated font, with a crown symbol above and laurel branches on either side.

Video game scene with a distressed cartoon character walking away from a fallen character, with a 'Game Over' message displayed in red text.

Video game options menu screen with the title OPTIONS at the top, a SOUND label with an empty slider bar below, and a bright orange BACK button below the slider. To the right, a vertical strip shows illustrated characters' faces in black outlines on a yellow background, with some characters wearing glasses and others wearing headbands.

Lineup of diverse animated characters, some holding tools or devices, with a character flexing muscles in the center, on a timeline background.

Sketch of five cartoon-style characters, including a woman with curly hair holding a spoon, a woman with a headscarf stirring a pot, a stern woman with glasses, a young girl with spiky hair juggling, and a man with his hand on his hip wearing an apron.

Line drawing of a cafeteria or dining area with seating arrangements, tables, and cabinets, with a map in the top right corner indicating different zones labeled as corridor, canteen, kitchen, and courtyard.

Fanart Art

Character design sheet of a fox-like humanoid in red and black clothing, showing various poses, expressions, and side and back views. The character holds a smoking cigarette and has pink hair with black and white accents, large ears, and sharp teeth.

Sophia/ Sofie

Hazbin Hotel OC

Imp Girl

Helluva Boss OC

Line drawing of a character design with horns, tail, and hooves, shown in multiple poses with different outfits, on a gray background with header lines.

Animosity / Bill

Gravitry Falls OC & AU

Comic-style character sheet of an alien with multiple forms and accessories. The character has a triangular form, human form with art style, and human form with MY art style. The character wears a dark jacket, white pants, and shoes, with various accessories such as a staff, a blind eye, and a jacket without Ford's jacket. The character is depicted with exaggerated expressions and features, along with notes about their traits and accessories.

Tera Martin

TMNT OC

Digital character design of Tera Marin, an anthropomorphic cat girl with blue and pink hair, cat ears, and a futuristic outfit. The image shows her in a colorful, cyberpunk-inspired style with various design elements, including color palettes for hair, skin, and clothing, and additional character expressions and accessories.

Animated scene of a fox-like character with antlers and a fox-like character with dark fur, in a room filled with electronic equipment, a vinyl record player, and Halloween-themed green spirits, with a sunset view outside.

A cartoon-style illustration of a female rabbit with purple hair and a hypnotic gaze sitting inside a car, holding a small girl with purple hair. Outside the car, three animals with surprised expressions look in through the window, including a panda and a cat. The scene is colorful with neon lighting effects.

Cartoon classroom scene with two characters dressed as a chess piece and a janitor, and a girl with bunny ears. The chess piece character appears sad, while the girl and janitor are interacting, with the girl blushing. Other students are in the background, with sunlight streaming through windows.

Futuristic digital artwork featuring a robotic humanoid figure with glowing tattoos, surrounded by neon chains, geometric shapes, and vibrant purple, blue, and pink accents against a space background.

Digital art of a person with shoulder-length dark hair, sitting with a relaxed pose, cigarette in hand, and a tiger-headed humanoid creature with glowing eyes behind them. The scene features neon green, purple, and white light streaks and a dark futuristic background.

3D Art & Concepts

Morning buffet - Diorama

A whimsical digital illustration of a house built into a small island with giant seashells and a tree shaped like a bread bun. The house has a rounded, organic design with pinkish walls, a smiling face on the door, and small windows. A pathway leads to the house, surrounded by decorative plants, candies, and fruit slices, with a serene blue background.

This was a small project I worked on during my studies.
The idea behind this project was to create a diorama based on a single main theme.
As the title suggests, I chose the theme of a breakfast.

Stylized digital illustration of a whimsical house built on a small grassy island, featuring two large, twisted trees with colorful, swirling canopies, surrounded by glowing fireflies.

SILVA - Spellarena

In this project, we were given two months to create a fully functional 3D game. We decided to develop a magic-themed battle royale.

In the game, players fight their way through procedurally generated dungeon rooms to gather loot that will later be essential in arena battles against other players.

To make multiplayer possible, we integrated Epic Games Online Services. The entire game was developed in Unreal Engine 4.27.1

Line drawing of a humanoid character with horns, pointed ears, and a scarf, seated with crossed legs and one hand resting on the knee, against a black background.

A 3D animated character resembling a female demon with gray skin, red horns, white hair, and yellow eyes, dressed in black and gold royal robes with a purple cape, standing with arms outstretched.

Digital 3D model of a female character resembling Princess Zelda from The Legend of Zelda series, with long blonde hair, a crown, and a purple and white dress with gold accents, standing in T-pose against a gray background.

Digital character in a futuristic blue and white outfit with a hood, standing with arms outstretched.

3D animated character model of a young man with short brown hair and facial hair, dressed in medieval fantasy-style clothing with armor details, standing with arms outstretched in a T-pose.

Sequence of four digital character concept art illustrations of a female fighter wearing a high-tech armor suit in different lighting and background styles.

A monochrome illustration of a fantasy character with horns and pointed ears, wearing garments with skull accessories, a pentagram design, and armor-like details, striking a dynamic pose.

Four digital illustrations of the same humanoid character with gray skin, white hair, horns, and elf-like ears, dressed in different gothic-themed outfits and accessories on a gray background.

A detailed sketch of a female character in futuristic armor with a hood, standing and looking forward. The armor includes a hooded cape, arm guards, and high-tech leg armor.

A stylized white skull with glowing red eyes, wearing a tall red top hat with a brown band, and a gold monocle over its left eye, set against a dark gray background.

Sketch of two skulls with skulls and horns, drawn with red lines on a white background, with initials 'TV' in red at the bottom left corner.

Concept art featuring a dark elf character with horns, wearing a cloak and accessories, alongside sketches of a female character in a detailed gown, and a floating skull ornament with a halo-like structure. Also includes close-up views of the character's feet labeled 'Winkel' and 'Seite.'

Character design sheet of a horned female elf demon in dark clothing with skull and skull motifs, showcasing full-color front view, and black-and-white side, back, and head sketches with accessories and costume details.

Blue sketch drawings of various mushrooms, mushrooms on rocks, plants, and grass.

3D rendering of a building interior with medieval meeting hall and a court with banners, chandeliers, and a gaming table

Line drawing of a character with horns and pointed ears, dressed in a hoodie and shorts, sitting with a rebellious expression.

Fake Commercial - Animation

In this project, I had two months to create a fully animated fake commercial. I was responsible for modeling, rigging, weight painting, texturing, and animating all assets on my own. The models were created in Blender, then imported into Maya for rigging, weight painting, and animation. All textures and materials were hand-crafted using Substance 3D Painter and Photoshop.

A 3D animated character with brown and purple hair, dressed in a black t-shirt and shorts, standing on a yellow question mark block from the Super Mario video game series. The character is holding a round, pink, and red creature resembling Kirby. The scene is set against a starry space background with floating particles and the character appears to be posed like the iconic Super Mario star power-up.

3D animated figure of a boy with brown hair wearing a blue 'Vincenzo Switch' shirt, shorts, and sneakers, standing on a question mark block on a grassy platform, reaching out with one hand, set against a starry space background.

Living room with orange sofa, green and striped towels, Kirby plush toy, Nintendo Switch controllers, and a toy set on a wooden table. Background features wall art, clocks, shelves, and a fireplace.

Interior of a hallway with wooden floors, yellow walls, and furniture including a wooden door, console table, bookshelf, and TV stand, with framed art and potted plants.

Living room with orange sofa, green blanket, TV, wooden entertainment center, bookshelves, staircase with yellow wall, framed artwork, wooden console table, and part of a desk with a keyboard.

A cozy living room with wood flooring, yellow walls, a white front door, a small green and white patterned rug, a wall-mounted shelf with a vintage yellow video game console, a stack of binders, a potted plant, a wooden coat rack with a black coat, and a shared space with a teal wall and window with striped curtains.

Digital character design of a young boy with dark brown, tousled hair, depicted from front and side views. The character wears a blue T-shirt with a mushroom graphic and '1-UP' text, black shorts with cargo pockets, red and white sneakers, and wristbands. The image includes color samples of the character's hair, skin, and clothing, along with annotations and color labels.

3D model of various furniture pieces arranged in a room, including a sofa, armchair, coffee table, cabinets, doors, a staircase, and decorative items.

Throw the planet away! -

Game PROTOTYPE

HOLA Serious Games - Project

Recycling symbol on a circular blue background

A serious game prototype for HOLA. "Throw the planet away!" is an open world puzzle game in which you try to solve the islander's environmental problems through sustainable solutions. The players learn the 17 sustainability goals through fun puzzles and get options suggested on how they could bring more sustainability in their everyday life.

In Cooperation with :

A modern, colorful house with a curved roof, white balcony railing, and several windows, surrounded by a paved area and greenery.

A colorful outdoor patio area with several buildings, including a red and blue house with a tower, a lime green rooftop garden, and a beige building with outdoor seating, surrounded by a tall white fence with lamp posts and benches.

A colorful outdoor restaurant with a wooden deck, tables, and chairs, overlooking a river and surrounded by green and autumn-colored trees.

Outdoor patio of a restaurant with round wooden tables, blue and white striped chairs, large beige umbrellas, potted plants, and a yellow building with large windows.

Colorful buildings with outdoor surfboard racks, tables, and a red vehicle, set in a sunny outdoor marketplace or neighborhood.

Animated scene of a beach with colorful umbrellas and lounge chairs, surrounded by orange and green trees, with sunlight reflecting on the water.

Three character sketches of a young girl with large eyes and fluffy hair, viewed from front, side, and three-quarters angles, in a cartoon style with exaggerated features and casual clothing.

Four children with backpacks, dressed casually, standing and smiling, labeled as "Child Concept" in blue text at the top left corner.

Sketch of four animated characters with the caption 'Ingénieur Concept' at the top, drawn in blue lines with a signature 'TA' at the bottom right.

Sketch of four animated scientists with playful expressions, labeled 'Scientist Concept', each holding scientific or botanical items.

Animated character of a mayor with a large white top hat with a red band, wearing a dark blue coat, yellow pants, and brown shoes, with a white sash labeled 'MAYOR' across their chest, standing with arms outstretched.

3D animated girl character with red hair, green eyes, green sweatshirt with "I Love Turtles" text, turtle graphic, blue pants, and yellow boots, standing with arms outstretched.

Illustration of a world map centered on the Atlantic Ocean, with continents depicted in silhouette against a blue gradient background.

A 3D animated character of a young girl with dark skin, wearing yellow and purple adventure gear, standing with arms outstretched.

A black spherical robot with blue glowing eyes and a brown front panel, with metallic side components, set against a dark background.

A digital credit card or bank card icon with a blue background and a dashed line near the top.

Fanart Projects

Radio broadcast | The aftermath

Here are two fanart projects I created in my free time. Both were modeled, rendered, and painted in Blender, with some additional work done in Photoshop.

Digital illustration of a sinister character with glowing yellow teeth, purple skin, and dark hair, standing on a metal tower with a control booth. Neon signs including 'ON AIR' and weather symbols glow around a red and purple sky.

Futuristic indoor scene with a red sky and sunset in the background, featuring a small table with a lamp, a chair, and whimsical decorations including a devilish face sculpture, a sign that reads 'OH DEER!', and a U-shaped counter with various electronic equipment and cables.

A stylized, cartoonish demon-like character with sharp teeth, glowing eyes, and spiky horns, leaning toward a booth containing a small creature with large ears.

A cartoon-style scene with a mischievous, smiling demon with glowing eyes and sharp teeth looking through a window at a girl with blonde hair and a pink pig plush toy sitting in a room decorated with Halloween-themed props.

A colorful, neon-like illustration of a bungee jump in front of a carnival ride, with bright rainbow hues and a glowing, surreal atmosphere.

A colorful, animated room with a pink pig mask on a chair, a lamp with a face on a table, a surfboard backrest, and a sunset view through large windows showing a green sun in a sky with orange and pink clouds.

Animated scene of a clown-like character sitting on a throne with red curtains, holding a child in a colorful costume, in a circus or theater setting.

A colorful children's bedroom with a four-poster bed, stuffed animal toy, toy blocks, a mirror, and red curtains.

Colorful children’s playroom with red curtains, alphabet blocks, dice, and stuffed animals, featuring a bed, a mirror, and playful decor.

Colorful children's playroom with red curtains, toys, and furniture. A clown figure, a rabbit with a long nose, and various building blocks and dice are scattered around.

Paws in Time

Boardgame

Cartoon cat character with a mischievous expression, laying on its back with one paw raised, in front of a blue circular background with colorful playful text that reads 'Paw-Time' and 'The Great Fish Heist'.

Genre A competitive, roll-and-move family game

Min. - Max. Players 2-4

Suitable for ages 8+

Story

In Paws in Time, you are reborn as a chubby little cat in a magical, fantastical universe! Rolling around clumsily due to your extra weight, you spend your days trying to make sense of your new life.

One day, while searching for something to eat, you roll a bit too fast and tumble over the edge of a raised platform—landing straight inside a mysterious hat. Confused, you try to climb out, but something pulls you down. That’s when you realize: this is no ordinary hat. It’s a magical hat!

Before you can react, the hat whisks you away on an incredible journey through time, transporting you to entirely unknown worlds. When you finally awaken, the initial confusion fades—and you realize it’s just you and the hat.

Stranded in this strange world, you have no idea how to get home. As you explore, you hear tales of magical goldfish, creatures said to hold unimaginable knowledge. The thought of fresh, delicious fish—and perhaps finally finding a way home—fills you with hope and excitement.

Determined, you set off to find the goldfish, unaware of the dangers, rivals, and adventures that await you on your journey.

Productinfo

Dice: