photorealistic image, neutral gray studio background with soft even professional lighting, 4L41_ZM_v1, Western European French Southern European descent, mid to late sixties, completely white-silver hair medium length natural volume no styling loose irregular texture, completely clean shaven no stubble no facial hair full face architecture exposed, pale blue-grey sharp direct eyes deep horizontal brow lines decades of focus, narrow deeply mapped face pronounced nasolabial folds horizontal forehead lines, sharp defined jawline no architectural loss to age, warm-toned genuinely weathered textured outdoor-exposed skin, lean visibly muscular functional definition, defined shoulders arms chest visible muscle separation abdominal definition, medium height long-limbed spare efficient physique from lifelong movement, wearing tailored dark charcoal pinstripe dress shirt with subtle stripes, top buttons open, slim black tie loosened, no jacket, three-quarter portrait pose with relaxed hands, sharp tailored fit highlighting shoulders and chest, detailed fabric weave, button shine and collar detail, skin pores and realistic weathered texture, clean studio lighting with soft eye catchlights, sharp focus on face, eyes, hair and shirt texture, soft bokeh gray background, professional portrait style, (masterpiece, best quality, ultra-detailed, photorealistic, 8k, sharp focus, realistic lighting, high resolution)