mk_mreallust style, polished manhwa illustrated-realism, handsome young man, half-body portrait, from behind angle, medium-short messy black hair, dark eyes, subtle skin texture, eyes gently half-lidded, soft half-lidded gaze, eyes relaxed in the warm sunlight, wearing a loosely worn open white short-sleeve shirt slipping naturally off one shoulder over a slightly damp white t-shirt, biting the hem of his t-shirt, subtly revealing the side of his toned abs and defined chest, light beige linen shorts, aboard a moving yacht, standing casually near the railing, sparkling ocean, boat wake trailing, subtle motion blur in the distant ocean and boat wake, warm golden hour sunlight, warm sea breeze, wind-blown hair and open shirt, low-angle cinematic shot, editorial fashion composition, cinematic summer atmosphere, highly detailed, natural composition, mk_OmniLight, dynamic directional lighting, soft shadow transitions, light interaction with subject, smooth light falloff
