Easy Prompt
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Game Asset - Humanoid Mecha Robot at Night

A complex cinematic prompt for a 15-foot tall humanoid mecha built from broadcast van parts, featuring neon blue highlights in a rainy urban environment.

Prompt Content

Copy and paste directly into your model or internal evaluation tool.

{ "format": "Single cinematic frame for GPT Image", "technical_specs": { "camera": "Low angle shot, shallow depth of field", "lighting": "Night scene, neon blue accent lights, wet surfaces", "quality": "Ultra-detailed, 4K, photorealistic CGI" },

"main_subject": { "type": "Large humanoid robot mecha, 15 feet tall", "construction": "Built from {argument name="mecha parts" default="black broadcast van parts"} - visible vehicle chassis panels, wheels converted to leg joints, satellite dish on chest", "details": [ "Matte black metal body with blue LED strips", "Two massive vinyl record discs (like DJ turntable platters) rotating slowly on shoulders - black vinyl with glowing blue label centers", "{argument name="brand logo" default="VTX logo"} glowing blue on chest center", "Mechanical legs with exposed pistons", "Head section has two bright blue headlight eyes", "Arms have DJ mixer faders and knobs as decorative panel details" ], "pose": "Standing upright, right foot planted on cracked pavement, left leg slightly bent" },

"person_on_mecha": { "position": "Standing on top of the mecha's head section", "identity": "{argument name="subject identity" default="Latin American man, early 40s, completely shaved head"}", "clothing": "Dark navy jacket, black pants, boots", "pose": "Standing confidently, one hand gripping a handle, other hand raised in fist", "expression": "Calm, confident, looking forward" },

"environment": { "location": "Wet asphalt road at night", "background": "Urban warehouses with neon signs, industrial buildings", "weather": "Heavy rain, puddles on ground reflecting blue lights", "ground": "Cracked pavement around mecha's foot, visible impact damage" },

"lighting_and_color": { "primary": "Cool blue neon glow from mecha LEDs and spinning vinyl centers", "secondary": "Warm orange sparks from mechanical joints", "atmosphere": "Dark moody night, rain, wet reflections", "key_colors": "Matte black, electric blue, dark grey asphalt" },

"action_frozen": "Mid-step stomp - right foot creating cracks in pavement, shoulder vinyl discs slowly rotating with blue light trails, sparks visible from leg joints, rain droplets frozen in air around the scene",

"avoid": [ "Weapons of any kind", "Cannons or guns", "Fire or flames", "Organic dinosaur features", "Green colors", "Forest or trees", "Multiple people", "Handheld weapons", "Excessive flying debris" ] }

Use Cases

Nano Banana Pro image generationReusable creative visual briefsImage model evaluation

Example outputs

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Reference Output

Gallery: https://youmind.com/en-US/nano-banana-pro-prompts?id=19773 Author: RobertZalvador Original source: Twitter Post

Scoring Rubric

Check whether the image follows the subject, composition, style, aspect ratio, text, and negative constraints; prioritize the visual details explicitly listed in the prompt.

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