Cooper fitting oak barrel hoop with mallet

Stark fluorescent tubes cast a cold, clinical glow across a predawn workshop in Changchun, illuminating the heavy winter air where a brief sun shower creates a wet haze near the open doorway. A cooper stands at the right edge of the frame, his posture rigid with disciplined focus as he drives a metal hoop onto a large oak barrel. He grips a wooden mallet in a gloved hand, the wood grain of the barrel catching the harsh light against the dark, shadowed background. The floor is slick with condensation, reflecting the overhead bulbs in long, distorted streaks. Frost lines the window frames, while the cooper's dark winter coat contrasts sharply with the pale, steaming vapor rising from the wet ground near his boots. at the edge shows a single droplet of water sliding down the barrel's stave, merging with the oil stains on the concrete.