IDENTITY PRESERVATION INSTRUCTION: Using the uploaded photo as reference, preserve the person's exact facial features, face shape, eye color, skin tone, and unique characteristics while transforming the image into a noir detective aesthetic. Maintain the core facial likeness and identity markers.

TRANSFORMATION DESCRIPTION: Convert the subject into a classic 1940s film noir detective character. Add period-appropriate styling including a fedora hat tilted low, a trench coat collar turned up, and atmospheric elements like cigarette smoke or urban fog. The pose should suggest a contemplative, mysterious detective persona - perhaps looking off-camera with a thoughtful expression or gazing into the distance. The overall mood should be gritty, atmospheric, and cinematic.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Cinematic film noir, black and white with subtle sepia or cool blue undertones, vintage photography aesthetic
- Lighting conditions: Dramatic chiaroscuro lighting with high contrast, deep shadows, single light source (streetlamp or window light), strong rim lighting on the face
- Color palette: Monochromatic black and white with optional subtle sepia tone for vintage authenticity, deep blacks, bright highlights
- Background treatment: Rain-slicked city street at night, wet pavement reflections, brick walls, alleyway, or dimly lit office interior with venetian blinds casting shadows
- Additional atmosphere: Film grain texture, light smoke or fog, rain effects, dramatic shadows

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face while maintaining atmospheric depth
- Professional cinematic quality
- Aspect ratio: 16:9 (cinematic) or 4:3 (vintage)
- Fine film grain texture for authenticity
- High contrast with preserved facial details

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, oversaturated colors, modern clothing elements, cartoonish style, flat lighting, low contrast, pixelation, unnatural skin texture, modern technology visible

USER CUSTOMIZATION:
{additional_context}

TIPS FOR BEST RESULTS:
- Use a well-lit, clear frontal or 3/4 view photo as the base
- Ensure the original photo has good contrast and sharpness
- The prompt works best with photos where facial features are clearly visible
- For specific era adjustments, mention the decade (1940s, 1950s) in the additional context
- You can specify gender-neutral or specific gender presentation in {additional_context}