adult male 3d model

Adult man with normal healthy body physique, highly realistic 3D render, natural human proportions and realistic skin texture, wearing simple neutral t-shirt and trousers, **sitting in a natural seated posture as if seated on an invisible stool**, knees bent at natural sitting angle, hips lowered in balanced seated position, spine upright but relaxed, shoulders level and natural, both hands resting casually on thighs with clear contact, elbows softly bent with small visible gap from torso, legs slightly apart in natural seated stance, feet flat on floor, head facing forward with calm neutral posture, **no stool visible**, full body completely visible within frame with clear margins, front view, isolated subject only, soft neutral studio lighting, no stylization, unbranded