Interpretation of Wang Xizhi's Dragon Book in Eastern Jin Dynasty

I copied two calligraphy of dragons online for your comparison. It can be seen that although the structures of the characters with black background (from Wang Xizhi) and the characters with yellow background (from) are different, their similarity is that the last stroke of "Li" has a tendency to extend outward, and the picture has some smooth radians. In the treatment of the right vertical hook, both of them will extend the vertical hook. The treatment of these two strokes, in addition, because there are many strokes of the dragon, both of them tighten the middle palace of the dragon under the condition of two extensions, especially Wang Xizhi. It can be clearly seen that except for two extensions, his middle part presents a trapezoid, which makes the whole character more stable. Hope to help you, * * *!