Eye shape, eye color, and exact natural hair characteristics are fully and seamlessly replaced by the user's uploaded reference image, strictly preserving the user's authentic facial identity, hair texture, and look perfectly while adapting to the pose. A full-body photograph capturing the man, maintaining his exact facial identity, blue eyes, and blonde hair. He is posed identically on the mountain trail, looking directly at the camera. He wears the identical grey fleece jacket, olive green cargo pants, and brown hiking boots, with the black backpack over his shoulders. The background of the snow-capped mountain range and forested valley is perfectly preserved. The lighting is natural daylight. The image is composed with a 1:1 aspect ratio