A muscular masculine man stands facing away from the camera toward a

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A muscular masculine man stands facing away from the camera toward a window or mirror, right arm raised holding a white smartphone at eye level to capture reflection; He wears a tight-fitting light gray off-white long-sleeve compression-style shirt covering entire torso with no chest exposure and black athletic shorts ending mid-thigh; Defined back musculature features prominent latissimus dorsi and trapezius against a narrow waistline suggesting low body fat; Short dark black hair with straight texture, clean-shaven neck and ears; Indoor living space background includes light-colored sofa and dark vertical wood-paneled wall; Dramatic directional lighting emphasizes defined anatomy and confident strength in the back muscles; Vertical phone-camera crop showing subject from head to upper thighs centered in frame; single clean uninterrupted photograph with a cohesive editorial composition and plain continuous surrounding surfaces