Five art-style prompts for Roblox thumbnails
Polished 3D, clickbait, anime key-art, cinematic and flat cartoon. Each tuned over several rounds against real top-chart thumbnails.
Copy the prompt with the button on its box, then paste it into your AI.
Each of these was tuned against real reference thumbnails, round by round, until the output matched. Paste one after your scene description from the RoClicks thumbnail prompt. They're long on purpose: every line is there because the output went wrong without it.
Polished 3D (the front-page look)
ART STYLE: Premium 3D-rendered thumbnail, the modern Roblox front-page look: a fully staged 3D scene rendered like a high-budget Blender shot.
Avatars are smooth glossy Roblox plastic with soft studio-quality shading, and their BIG cartoon faces do the acting: wide grins, worried brows, gritted determination. Expressions are the storytelling.
One construction head to toe: the legs are rectangular blocks with the same chunky proportion as the arms and torso, ending in wide block feet or chunky shoes. Legs may bend at a boxy knee but never taper, never turn slim or human. A blocky torso on skinny human legs is a failure; check the whole body reads as one toy.
Vehicles, props and environments render semi-realistically with real materials: paint with reflections, glowing headlights, brushed metal, warm window light. The smooth toy avatar living inside a believable world is the whole appeal. Exaggerated oversized props and playful staging are welcome.
Dynamic camera like a movie poster: low angles, foreshortening, shallow depth of field, motion blur on wheels, rotors and passing scenery when anything moves.
One clear lighting story per image: golden-hour sun, night scene with glowing headlights and lit windows, or crisp blue-sky daylight. Clean, bright, saturated and appealing; subtle bloom on highlights, zero grain, zero grime, nothing scary.
NOT painterly, NOT outlined or cel-shaded, NOT photoreal humans, NOT dark or gritty. This is the polished, friendly, high-production look of top-grossing Roblox games.
Clickbait (before/after, 1 vs 999)
Attach two to four real clickbait-style Roblox thumbnails as references; this style anchors to them rather than overriding them.
ART STYLE: Your output must look like it belongs in the SAME SET as the attached reference images. They are real Roblox thumbnails: 3D Studio renders of plastic blocky avatars with flat 2D editor graphics pasted on top. Match their RENDERING exactly while never copying their composition or content.
RESTRAINT IS THE STYLE. Real Roblox renders are simple: matte and lightly glossy plastic, big clean shapes, one key light plus sky light, soft contact shadows. Over-rendering is what makes an image look AI-generated and fake. Gear is built from a few large simple 3D shapes with flat bevels and solid colours, NO engraving, NO filigree, NO ornate surface detail. At most ONE glow effect in the whole image, never glow on every edge. Saturation is high but lighting stays plain.
THE SCENE: a visible floor the characters STAND ON with contact shadows at their feet; at least two solid 3D background objects (a wall, a pillar, a market stall, a torch, a chest); a sky or ceiling. A glow void, energy field or painted backdrop instead of a floor and walls is a failure.
Faces are meme acting via Roblox face decals on the 3D head: crying, panicked, smug, gritted teeth.
2D is allowed ONLY for editor graphics: one fat red arrow, chunky outlined labels, floating +1s, radial zoom lines. All labels live in the top strip of the image; the bottom third contains NO text. One short label per side, maximum two labels in the whole image.
Scale contrast sells the click: 1 versus 999, drab versus vivid. Readable at postage-stamp size.
SPLIT ONLY WHEN ASKED: divide the frame into two halves only for a before and after, an upgrade, a comparison or one versus many. When split, both halves are the SAME location rendered twice, one drab, one upgraded and colourful. Every other request is ONE scene. Never invent a game name.
FINAL CHECK:
1. Characters stand ON a floor with contact shadows, with at least two solid 3D objects and a sky behind them. No glow voids.
2. All text sits in the top strip. The bottom third contains zero text. Maximum two labels.
3. Gear is a few large simple plastic shapes, at most one glow effect. Plain and Roblox beats epic and AI.
Anime key-art
ART STYLE: Hand-painted anime splash art, the commissioned key-art look of top Roblox anime games. Visible painterly brushwork and texture in every surface: rough strokes in the hair, dry-brush cloth folds, gritty painted skin. NOT smooth vector art, NOT neon airbrush gradients, NOT flat cel shading, NOT a 3D render, NOT chibi, NOT cute.
The character is an adult with normal anime proportions: sharp angular face, strong jaw, fierce detailed eyes, heavy brows, strand-level painted hair. Expression grim and intense. Hands and forearms may read subtly blocky, everything else is pure anime illustration.
Lighting carves the figure out of darkness. Deep black core shadows INSIDE the body and clothing; only the edges catch a hard rim light in the signature colour; the face is half-shadowed. High contrast between lit edge and dark mass is the whole look.
ONE deep menacing signature colour owns the frame: blood red, poison green, royal purple or burnt orange. Saturated but dark, never pastel, never cyan-bright. It flows off the subject as directional painted energy strokes with embers and particles; the background is near-black with a heavy vignette.
Behind the hero a larger presence looms out of the darkness, painted pale and detailed: a creepy demon skull, a spectral beast, or a rival's shadowed face, half-swallowed by the dark. For a versus scene, split the frame into two clashing colour halves (poison green against blood red, orange against blue), both rivals mid-attack, energy colliding at the seam.
The negatives in the first paragraph (not chibi, not vector, not airbrush) were essential here: without them the output drifted to bright cute vector art.
Cinematic (blocky hero, real world)
ART STYLE: Photorealistic cinematic render: a strictly blocky Roblox avatar inside a world that could pass for a photograph. The avatar construction stays fully blocky, and the GEAR on it is hyper-detailed and real: fabric with visible weave and wrinkles, straps, buckles, worn leather, fur trim, scuffed metal. The FACE is the one exception: it stays a flat graphic printed on the front of the head, two simple eyes and one simple mouth, with no sculpted brows, eyelids, teeth, tongue or nose. The environment weathers the character physically: snow piling on the helmet and shoulders, rain soaking the cloth, dust settling on the gear.
Weather and atmosphere are a physical presence in the frame: driving snow or rain streaks with motion, drifting mist, breath fog where it belongs.
Colour grade like a film still: a cold or muted master palette with exactly ONE warm accent that owns the eye (a glowing window, a lantern, a campfire, one saturated piece of gear). Soft natural light; subtle film grain.
Camera does real cinematography, pick one: a low-angle close-up on the hero with shallow depth of field, or a wide storytelling shot with the avatar small in a vast environment, mid-journey toward the warm accent, composed on thirds. The hero facing away from camera is allowed and often stronger.
THE NON-NEGOTIABLE, in both directions: the humanoid avatar is blocky, and NOTHING ELSE is. The avatar must read as a Roblox character at a glance from any distance: block head, rectangular box torso, rectangular limbs that end flat with no hand part, no fingers, no human anatomy. If the character could pass for a real human, the image has failed. Animals, creatures and mounts are high-end VIDEO GAME assets, not photographs: realistic proportions, but visibly a game model, with clean smooth surfaces and hide as well-made game textures. Aiming for realistic and landing just short of it is exactly right. A blocky or wooden animal is a failure, and so is one that could pass for a wildlife photo.
No outlines, no toon shading, nothing painterly. This is a rendered photograph of a blocky toy-proportioned person in a real world.
Flat cartoon (2D, thick outlines)
ART STYLE: Fully 2D hand-drawn cartoon illustration, the flat illustrated look of top Roblox fighting and ability games. This is a DRAWING, not a render: zero 3D shading, zero realistic lighting, zero depth of field.
Characters are blocky Roblox figures drawn as bold flat shapes: block head, box torso, box limbs, with a thick clean outline around the whole silhouette, white or dark, like a die-cut sticker. Proportions are exaggerated for comedy and impact: fists and weapons drawn HUGE, heads small, poses pushed past what a real avatar could do.
Faces are simple and funny: dot eyes, a smug smirk, gritted teeth, a worried frown, drawn flat on the head like a decal. Realistic or anime human faces are not allowed.
Cel shading only: each colour gets at most one flat shadow tone and one flat highlight tone with hard edges. No gradients on the characters, no soft airbrush blending.
Backgrounds are flat and graphic: one bold saturated sky or wall colour, chunky vector clouds with outlines, halftone dot fields, simple geometric ground. Speed lines and radial zoom lines welcome.
Energy and magic are the one painterly element allowed: swirling painted auras, fire licks and impact bursts may have loose brushy edges and a second glow colour, wrapping around fists or weapons.
High-energy palette: saturated primaries and neons, strong complementary contrast (orange against blue, purple against yellow, green against sky blue).
NOT a 3D render, NOT glossy plastic, NOT photoreal, NOT dark painted anime key-art, NOT muted or gritty. Bright, loud, flat and fun.