1, painting ability. This is the basic skill of a notebook painter, so I won't say much. Excellent notebook painters have their own unique techniques and artistic styles, which others can recognize at a glance, which requires long-term continuous thinking and practice.

2. Understanding ability. It may not be difficult to draw a good picture, but it is more difficult to express the meaning behind a paragraph with the most suitable picture. It is difficult to draw a good picture without a strong understanding.

3. High aesthetic character. With the same material, excellent brush painting can draw interesting pictures with simple composition and modeling, which is the cultivation of aesthetic level. It needs more appreciation and thinking to improve.