Striking full-bleed vertical wallpaper composition of a muscular

Prompt

Striking full-bleed vertical wallpaper composition of a muscular adult man standing in profile, grey sleeveless tank top covering torso and back, dark grey textured shorts. Left arm raised behind head with elbow bent gripping black wristband near neck; right hand resting by hip holding a black object. Soft directional indoor lighting on defined back muscles and veins on arms against plain light-colored walls. Vertical portrait crop from mid-thighs to upper chest/neck with clean negative space., a single uninterrupted photograph only, no written words or typography anywhere in frame, no captions, no app UI, no social-media post layout, no screenshot borders