Video prompt: A cyclist riding along a scenic coastal road with waves crashing against rocks and seagulls flying overhead.
Defect: Deformation (any reason involved with a movement)
Explanation: While the person is riding the bicycle, his legs exhibit only a mechanical shaking motion, lacking natural pedaling movement, which makes the posture appear highly unnatural. Additionally, the person’s body undergoes shape distortion, altering in a way that disrupts a stable, realistic form.