Ultra realistic cinematic portrait of a young man

Use your uploaded photo as the ONLY identity reference. Create an ultra-realistic full-body outdoor portrait matching the reference composition: subject sitting casually on lush green grass in front of a black classic motorcycle, with one knee raised and the other leg extended toward the camera, relaxed confident posture, one hand resting on the raised knee and the other near the thigh. Wear a black jacket over a white shirt, loose black pants, and black boots, and dark sunglasses. Background: open green field with a calm lake/horizon, bright blue sky with large dramatic clouds. Natural bright daylight, realistic shadows, DSLR photography, sharp details, cinematic color grading, natural skin texture. Preserve the uploaded face, hairstyle, skin tone, age, gender, and facial features exactly; do not beautify or alter identity. Instagram portrait, 4:5 vertical (1080x1350), mandatory.