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 professional outdoor photograph of the man, maintaining his exact facial identity, blue eyes, and short brown hair. He is posed identically in front of the hospital entrance, standing with his arms crossed, wearing the same white lab coat over a blue shirt and tie, with the stethoscope around his neck. The background hospital building and parking lot are perfectly preserved. The lighting is natural daylight. The image is composed with a 1:1 aspect ratio.