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 World War II soldier portrait. The facial identity must remain completely recognizable and authentic to the original person.

TRANSFORMATION DESCRIPTION:
Transform the person into a realistic World War II soldier from the 1940s era. Apply period-accurate military uniform including olive drab or khaki field jacket, military helmet, and appropriate soldier gear. The transformation should maintain the person's natural expression while adapting it to a serious, determined military demeanor appropriate for the historical context. Include subtle environmental elements like a battlefield or military camp atmosphere without overwhelming the portrait.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, cinematic historical photography style matching 1940s film grain aesthetics
- Lighting conditions: Dramatic, moody natural lighting with soft shadows, reminiscent of wartime documentary photography
- Color palette: Desaturated, sepia-toned or muted earth tones (olive drab, khaki, brown, gray) with period-appropriate color grading
- Uniform details: Authentic WWII-era military uniform with proper insignia, buttons, and fabric texture
- Helmet and gear: Realistic metal texture on helmet with appropriate wear and weathering
- Background: Subtle military environment - either a blurred battlefield background, military barracks, or neutral atmospheric backdrop that doesn't distract from the portrait
- Skin texture: Natural skin texture preserved with subtle weathering effects appropriate for a soldier
- Facial expression: Serious, focused military expression while maintaining recognizable facial features
- Hair: Styled to fit under helmet or in period-appropriate military haircut

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face
- Professional quality portrait photography
- Natural skin texture preservation
- Period-accurate fabric and material rendering
- Cinematic composition with rule of thirds
- Aspect ratio: 1:1 or 4:3 for classic portrait format
- Film grain effect: Subtle 1940s photographic grain

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, modern clothing elements, futuristic or anachronistic details, cartoonish or anime style, excessive makeup, unnatural skin smoothing, unrealistic uniform proportions, modern hairstyles, digital artifacts, low resolution, pixelation, unnatural lighting, over-saturated colors, contemporary accessories

USER CUSTOMIZATION:
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ADDITIONAL NOTES:
- The soldier uniform should match the person's body proportions realistically
- Lighting should enhance facial features without creating unnatural shadows
- Historical accuracy in uniform details while maintaining the person's identity
- The transformation should look like a genuine 1940s military portrait photograph