A muscular male subject, wearing a black tank top and dark over-ear headphones, is captured in a mirror selfie indoors

A muscular male subject, wearing a black tank top and dark over-ear headphones, is captured in a mirror selfie indoors. He holds a black smartphone to photograph his reflection while posing to display his flexed left bicep. The subject's face is largely obscured by the phone. The circular, frameless mirror reflects a white door marked with an inverted "STAFF" sign. To the right of the door, a metal shelving unit is filled with numerous individually wrapped rolls of white material, likely paper products, and several cardboard boxes. A section of a ventilation unit or air conditioner is visible at the top of the reflected area. Outside the mirror's frame, a plain white wall is visible on the left, a light-colored wooden plank leans against the wall below the mirror, and a dark brown, cushioned seating surface is partially visible in the lower right foreground. Based on the "STAFF" sign and storage setup, the scene appears to be within a backroom, staff area, or storeroom of a commercial or institutional establishment. The specific location within Sofia, Bulgaria, cannot be determined from the provided visual information.