机器人偶：缓慢重复同一个动作

Design a kinetic figurative sculpture that performs one small action endlessly. Show a life-size seated figure whose body is a sculpted shell but whose mechanism is entirely exposed — the torso opened at the back to reveal a slow-geared motor, a cam, brass linkages and a counterweight, all machined and visible. Detail the single action as minimal and unremarkable: the figure very slowly raising one hand toward its face, pausing, and lowering it again, on a cycle of perhaps ninety seconds, with the movement caught mid-rise in the image and slightly blurred. Show the mechanical honesty as central — the linkage arm entering the shoulder through a plainly visible slot, the cable running down through the chair leg into the floor, the low hum implied by the machined precision of the parts. Detail the figure's surface as deliberately unfinished sculpture: raw grey modelling material with tool marks and armature wire visible at the extremities, no attempt at skin or clothing, so it is never mistaken for a person. Show the repetition's effect implied by a small worn track on the shell where the hand has brushed it thousands of times. Detail a visitor watching, waiting for the cycle. Show even gallery light. Photorealistic, mechanical, grey shell and brass linkage, eye-level three-quarter view.