What did the famous painting of the Tang Dynasty painter Yan Liben, the Painting of the Walking Carriage, reflect? What kind of expression technique did it use?

The famous painting of the Tang Dynasty painter Yan Liben,"The Painting of the Walking Carriage," reflected the court etiquette culture of the Tang Dynasty. It depicted the scene of Emperor Taizong of the Tang Dynasty, Li Shimin, and his favorite ministers in the court meeting. The painting used delicate emotional descriptions and exquisite painting techniques to show the luxury and rigor of the Tang Dynasty palace. It was a classic in the history of ancient Chinese painting.