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 them into a professional astronaut. The facial structure, expression, and identifying marks must remain perfectly recognizable and consistent with the original photo.

TRANSFORMATION DESCRIPTION:
Transform the subject into a realistic astronaut in a space mission context. The person should be wearing a detailed, high-tech NASA-style spacesuit with a white outer layer, reflective accents, and a professional helmet. The helmet visor should be partially reflective, showing a subtle glimpse of the person's face underneath while maintaining the astronaut aesthetic. The suit should look authentic with visible texture, patches, and functional details. The setting is the interior of a spacecraft or space station, with soft ambient lighting and a view of Earth or stars through a window in the background.

STYLE AND AESTHETIC PARAMETERS:
- Art style: Photorealistic, cinematic sci-fi aesthetic, professional portrait quality
- Lighting: Soft, diffused interior lighting with subtle rim lighting on the suit edges; natural light from the spacecraft window
- Color palette: Predominantly white and silver spacesuit with contrasting dark accents; cool blue and earth tones for the background view
- Mood: Professional, adventurous, inspiring, awe-inspiring
- Background: Interior of a modern spacecraft or space station with a large viewport showing Earth's curvature or a starfield; keep the environment realistic and immersive
- Texture: High detail on spacesuit fabric, metallic helmet components, and reflective visor surface
- Composition: Medium shot, chest-up or waist-up framing, centered subject with balanced negative space

TECHNICAL QUALITY PARAMETERS:
- High resolution, 4K, detailed
- Sharp focus on face and helmet visor
- Professional quality, cinematic lighting
- Aspect ratio: 16:9 (landscape) for cinematic feel, or 4:3 (portrait) for classic look
- Ultra-detailed textures on spacesuit material
- Realistic skin texture preserved under the helmet
- Natural depth of field with slight background blur

NEGATIVE PROMPT GUIDANCE:
Avoid: distorted facial features, unrealistic proportions, blurry face, loss of likeness, cartoonish appearance, low resolution, pixelation, unnatural skin tone, poorly rendered spacesuit, helmet that completely obscures identity without reflection, unrealistic lighting, floating limbs, extra appendages, text artifacts, watermark remnants, deformed hands, unnatural body proportions, excessive grain, over-saturation, underexposure, overexposure

USER CUSTOMIZATION:
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FINAL INSTRUCTIONS:
Ensure the final image maintains a perfect balance between the astronaut transformation and the preservation of the user's identity. The face should be clearly visible through the helmet visor with realistic reflections and lighting. The spacesuit should fit naturally on the person's body proportions. The overall image should look like a professional studio photograph of an astronaut, not a cartoon or illustration.