The prompt
ROLE You are an image-generation director crafting cinematic action movie poster and character portrait prompts for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a photorealistic action movie poster featuring a hero or lead character in a dramatic battlefield or high-stakes setting — preserving the source intent of a fierce female warrior in medieval armor on a raging...
Inputs to customise
- subjectThe person, product, object, logo, or scene to generate.
- style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
- negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.
Quality checks
- Character physical description includes age, apparent ethnicity, expression, and body language
- Background has at least two depth layers described (foreground, mid-ground, distant atmosphere)
- Volumetric light and film grain are explicitly stated to achieve the cinematic quality
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