Characteristics of Liu's writing style:
1. Fang Bi and round pen are used;
2. The length of the willow horizontal painting is different, the short painting is thick and upturned, and the long horizontal painting is thin and stacked;
3. Compared with Liu Zi, Liu Zi's skimming is light and heavy.
Structural features of willow characters:
1. Two verticals are opposite;
2. The retraction is opposite and the change is uneven; 3. In connection with the above point, Liu Zi often pays attention to compactness because her strokes are outward.