What are the characteristics of North American Indians in modeling, painting and sculpture?

Indians on the grassland already have a high decorative art. They embroider or draw on their skin with fine bristles or small glass beads. Embroidery and painting are all made into geometric figures, and each geometric figure has a specific name and meaning; In the overall structure, it also shows a symbol or plot, which mostly shows military content. People embroider on moccasins (depicting the wearer's military achievements), on pipe boxes and cigarette bags, and draw realistic graphics on tents and clothes.