Video prompt:  man in a hat playing a violin while standing on a balcony. The man is wearing a black sweater, which gives him a stylish appearance while playing the instrument. The scene captures a moment of relaxation and enjoyment for both the man and the audience.
Defect: Deformation (any reason involved with a movement)
Explanation: As the man plays the violin, the hand pressing down on the strings undergoes severe blurring and shape distortion, making it difficult to discern the exact number of fingers. This intense blurring creates an unclear, unnatural appearance, obscuring the hand's details and adding an unrealistic effect.