The order of sketch is generally from simple to complex, and the painting skills are gradually improved. The following is the general order of sketch:

1. Geometry: First draw simple geometric figures, such as cubes, cylinders, spheres, etc. Exercise basic perspective and sense of proportion.

2. Still life: Then draw still life, such as bottles, jars, fruits, etc. To exercise the basic elements such as the shape, texture, light and shadow of the object.

3. People: When you are proficient in geometry and still life, you can start drawing people. Start with a simple avatar and gradually increase the difficulty to a full-length portrait.

4. Scenery: Finally, draw landscapes, such as trees and mountains, to exercise the sense of space and color.

It should be noted that the above order is not absolute and can be adjusted according to personal interests and needs. At the same time, reading more excellent sketches and imitating others' skills and styles are also important ways to improve the level of sketching.