Older man sketching at a corner desk by lamplight

A man in his sixties with grey hair sits in profile at a small corner desk, pencil resting on an open sketchbook, a potted plant and a closed laptop at the edge of the frame. A warm desk lamp keys him from the left, its falloff deepening into walnut shadow across a cool muted teal wall. He wears an oatmeal knit sweater, a single amber mug the only strong accent. 50mm, gentle depth of field, calm teal wall filling the right third --ar 4:3