What It Does
1) Uses the attached photo as the main identity anchor
“Use the attached photo as the identity reference…” This tells Nano Banana Pro to keep the person recognizable, meaning it should match:
It also says: “Do not change age or ethnicity.” So the model should not “beautify” into a different person or shift demographics.
2) Allows expression change but keeps the same person
“Change the facial expression as per style.” This gives permission to alter mood, for example tougher, colder, more agent-like, while keeping identity.
3) Locks the output format to a movie-poster layout
“Create a premium cinematic movie poster in vertical 9:16.” This forces a tall poster format for Reels, Shorts, Stories.
4) Forces a specific poster aesthetic (the AGENT gritty style)
“STYLE = gritty retro spy poster…” This defines the visual language:
So the output should feel like a printed cinema poster, not a clean Instagram portrait.
5) Controls framing, background, outfit, and prop
Composition rules force:
6) Controls lighting and color quality
This part:
So it stays premium and not cartoonish.
7) Adds title and credits like a real poster
Text rules force:
This is important because many image models distort text, this prompt pushes for clean text.
8) Negative prompt prevents common failures
The negative prompt explicitly blocks:
This increases the chance of a clean, usable poster.
How To Use
Upload the user photo Pick a clear face photo (good lighting, front or slight angle). Avoid heavy blur, strong shadows, and face covering.
Paste the main prompt Keep it as one block.
Paste the negative prompt If Nano Banana Pro has a dedicated negative field, paste it there. If it does not, append it at the bottom with a label: “NEGATIVE: …”
Generate If the text looks wrong (common issue), do the 2-step method below.
✨ The Prompt
💡 Pro Tip
Copy this prompt, replace all [PLACEHOLDERS] with your specific details, then paste into ChatGPT, Claude, or Gemini. The more specific you are, the better results you'll get!
"Use the attached photo as the identity reference. Preserve the same person clearly, realistic facial structure, skin tone, and unique features Change the facial expression as per style. Do not change age or ethnicity. Create a premium cinematic movie poster in vertical 9:16. STYLE RULES (choose based on {STYLE}) STYLE = gritty retro spy poster, photoreal cinematic, warm sun-haze, heavy film grain, distressed paper texture, dust specks, subtle scratches, slight vignette, vintage crime-thriller energy. COMPOSITION Frame for 9:!6: subject centered, strong hero framing, sharp face and sharp eyes. Background: Dark, cinematic depth of field, background slightly blurred, subject crisp. Outfit: US Army Suite, realistic fabric detail and folds. Prop: AK47, integrate naturally, tasteful, no gore. Lighting mood: cinematic, directional light, dramatic shadows, high-end color grading that matches the palette. Keep skin tones believable, do not over-saturate. TEXT (must be readable, clean, and spelled correctly) Add title exactly: ‘BATTLE’ large and bold, with subtle texture consistent with {STYLE}. Add tiny film credits line at the very bottom, subtle, not distracting. Ensure typography is crisp, aligned, not warped, not melted. QUALITY Ultra detailed, poster-ready, premium cinematic finish, no watermarks, no random logos.” NEGATIVE PROMPT “text mistakes, misspellings, unreadable title, warped letters, melted typography, extra fingers, deformed hands, distorted face, low-res, blurry eyes, plastic skin, watermark, random logos, messy layout, overexposed highlights, oversaturated neon”"Recommended Tools
Author
Ramanpal Singh
Ramanpal Singh Is the founder of Promptslove, kwebby and copyrocket ai. He has 10+ years of experience in web development and web marketing specialized in SEO. He has his own youtube channel and active on social media platform.