Ultra-realistic studio full-body fashion portrait

Create an ultra-realistic 8K full-body studio portrait using the uploaded reference image strictly as the sole facial and identity source. Preserve exact facial structure, proportions, skin texture, hairline, beard presence, natural expression, and any existing tattoos; no beautification, stylization, identity drift, or invented details. Centered subject with slightly turned body, facing camera calmly and confidently, one hand naturally in trouser pocket, relaxed positive posture. Wear an oversized heavyweight cool-white crewneck with dropped shoulders and wide sleeves, wide-leg dark tailored/carpenter trousers with visible contrast stitching, and low-top sneakers with thick rubber soles; minimal accessories or none. Seamless solid red gradient backdrop with subtle edge vignette, no props or environmental elements. Soft front-center key, gentle fill, subtle rim light, soft chin shadow and faint floor shadow. Eye-level camera, full-body composition, crisp focus, realistic fabric/material textures, editorial commercial fashion photography, high contrast, clean edges, no motion blur or distortion. 4:5 aspect ratio.