Create an ultra-realistic 8K fashion photoshoot collage using the uploaded reference photo. Show the same young man in seven different poses, including standing, sitting on a chair, walking, side profile, back view, and crouching. Keep his face, hairstyle, beard, and sunglasses consistent with the reference. Outfit: oversized beige T-shirt, light blue baggy jeans, grey sneakers, and a silver chain. Clean white studio background, soft professional lighting, natural shadows, realistic fabric textures, full-body shots, premium fashion catalog aesthetic, sharp details, high resolution. Maintain the original outfit and identity, with no distortion or extra limbs. Vertical 4:5 composition.