a elderly clockmaker with brass goggles and leather apron, standing over a workbench cluttered with tiny gears and half‑assembled pocket watches, three complex light sources: intense warm orange key light from a small forge furnace on the left (casting long, sharp shadows of his hands), soft cool blue fill light from a rainy window on the right (bouncing off white ceramic tiles), and a flickering yellow‑green rim light from a bubbling chemical bath containing a luminous clockwork heart behind him, brass and copper tools gleam with separate specular highlights, steam rises from the furnace and mixes with the cold window light, dust particles visible in the key light beam, cluttered Victorian workshop, cinematic depth of field, three light sources