A detailed JSON-style prompt template for creating dramatic black and white studio portraits with butterfly lighting and realistic skin textures using Nano Banana Pro.
Prompt
{
"style_prompt_template": {
"subject": "{{PERSON_NAME_OR_IMAGE}}",
"aspect_ratio": "9:16 vertical",
"canvas_size_guidance": "1080x1920 or equivalent 9:16",
"shot_type": "medium portrait shot, zoomed out 50% from tight close-up, head-to-mid-torso visible, facing camera",
"photography_style": "dramatic black and white studio portrait, editorial/fine-art photography",
"composition": {
"face_position": "subject's face centered both horizontally and vertically in the frame",
"face_size_in_frame": "face occupies roughly 20-25% of frame height, not tightly cropped, ample negative space around subject",
"eye_line": "eyes aligned at approximate vertical center of the canvas",
"headroom": "generous margin above the hair, clear dark space visible above head",
"crop": "visible down to mid-chest or waist, more of the suit and shoulders shown, wider view than a tight headshot",
"surrounding_space": "large area of negative black space surrounding subject on left, right, top, and bottom",
"alignment": "subject facing straight into camera, symmetrical framing, no off-center offset"
},
"lighting": {
"type": "single hard top-down spotlight (butterfly/Paramount lighting)",
"quality": "harsh, narrow beam creating strong falloff",
"key_highlight": "top of hair and forehead catch bright rim light",
"shadow_behavior": "deep shadows under brow, cheekbones, and jawline; steep light-to-dark gradient across face",
"background_light": "none; background falls into near-total darkness with faint gradient near top edge, spotlight cone visible in wider frame"
},
"color_treatment": "monochrome black and white, high contrast, deep blacks, no gray midtone flatness",
"background": "solid black or near-black, subtle vignette, no visible texture or props, large expanse of negative space",
"wardrobe": "dark tailored suit jacket, white dress shirt, dark tie, formal/business attire, full torso visible",
"expression_and_pose": "neutral to serious expression, calm and composed, minimal smile, direct gaze into lens, relaxed shoulders",
"skin_and_texture_detail": "visible natural skin texture, pores, fine wrinkles, stubble if present, unretouched realism",
"hair_detail": "individual strands visible and crisply lit, natural texture, not overly styled",
"camera_and_lens": "shot as if on medium format camera, 50mm-85mm equivalent lens, greater working distance from subject, shallow depth of field, tack-sharp focus on eyes",
"grain_and_finish": "fine film-like grain, high dynamic range, crisp micro-contrast, glossy editorial finish",
"mood": "intense, powerful, cinematic, timeless"
},
"negative_prompt": "color cast, flat lighting, soft focus, blown highlights on face, busy background, smiling broad"
}
How to use this prompt
1
Copy the full prompt above.
2
Open a platform that supports Nano Banana Pro, such as YouMind, and paste the prompt in.
3
Swap the subject, style, or details to fit your idea, then generate.
This is a free AI prompt from YouMind's prompt library. Explore thousands more image prompts, all free to copy and adapt.
Let AI search through tens of thousands of prompts. Filter by model, time range, keywords, and sort by engagement — views, bookmarks, reposts and more.
Turn any photo into a detailed AI image prompt. The free image to prompt converter analyzes composition, style, and lighting so you can recreate any look in seconds.
