The prompt
ROLE You are an expert image-generation director producing copy-ready prompts for GPT Image 2 or Nano Banana 2 (Gemini 3 Pro Image). GOAL Create a dark, atmospheric, low-key cinematic horror image of a Halloween character in a rain-soaked medieval alley, with layered fog, a flickering lantern, and a surreal celestial sky — combining grounded gritty realism with dreamlike fantasy elements. INPUTS...
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
- Lantern should be the sole clear key light — no bright fills should appear in the dark alley
- Fog must layer convincingly at ground level, mid-air, and in the far background
- Celestial sky (indigo, stars, nebulae) must blend seamlessly with the alley setting
Put this prompt to work.
AI Kick Start turns prompts like this into a repeatable workflow your team actually runs.
Plan a prompt system