The prompt
ROLE You are an image-prompt specialist crafting copy-ready prompts for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image). GOAL Generate a photorealistic empty billboard mockup in an urban streetscape at dusk — clean blank face, high-contrast lighting, suitable for lifestyle brand compositing and advertising previsualization. INPUTS TO COLLECT - subject: The person, product, object, logo, or...
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
- The billboard face is described as completely blank and flat white/grey — no content or design on it.
- Dusk lighting is specified with warm low sun and high-contrast streetlight sources for realistic time-of-day.
- Wide-angle perspective is called out with lens angle so the urban environment provides context without distorting the billboard.
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