Video prompt: An exciting equestrian polo match where riders and horses work in tandem to score goals, demonstrating teamwork and refined skill.
Defect: Deformation (any reason involved with a movement)
Explanation: The movement of the group of  horses is highly unnatural, with the motion patterns of their four legs appearing irregular and unrealistic. Additionally, as their legs make contact, they merge in certain areas, creating peculiar effects and noticeable shape deformations, further disrupting the realism of their motion.