During the creation of his "Blizzard Sweeping Over the Tundra" oil painting (Figure 3), Ai Xuan first placed a thin layer of plastic paste on the sketch, and then used a brush to shape hair and snow as needed. from image. And cashmere and other texture effects, and finally through sandpaper polishing, staining and other steps to create a different visual effect.In creating the characters for the two plays, Ai Xuan used the brush to describe the girl's bright face gently and delicately, and used the soft brush strokes in creating the cashmere dress to show the thick sense of Tibetan clothing. . When Rembrandt painted the veteran's face, he used a combination of fine eye covering and shiny highlighting to distinguish the metallic effect of the golden helmet. They skillfully expressed the characteristics of age and the internal temperament of different characters.