Introduction to gray sculpture: Gray sculpture is an architectural decorative art widely used in traditional buildings in the Pearl River Delta. It is called "grey sculpture" among the people. It is generally decorated on door window frames, gable tops, eaves, tile ridges, and pavilions. Archway, etc. Among the remaining ancient buildings, the most outstanding ones are the gray sculptures at Chen's Academy in Guangzhou, the Ancestral Temple in Foshan, the Xujiang Ancestral Temple in Sanshui, and the Longmu Ancestral Temple in Yuecheng.
The total length of Chen's Academy's gray sculptures is 2,562 meters, with a total area of ​​approximately 2,448 square meters. It is the largest in Lingnan. The themes of gray sculptures are mostly myths and legends, historical stories, opera characters, as well as various auspicious patterns composed of auspicious birds and beasts, flowers, fruits and trees, auspicious characters, as well as landscapes, towers and pavilions and other popular themes among the people. Artists combine different themes and use homophony or symbolism to express people's various wishes for a better life. Their meanings can be discerned by ordinary people without further elaboration. This direct and clear form of communication, It is a prominent feature of traditional folk art.