Master calligrapher, please come in!

1. Four fingers of regular script (Yan Zhenqing, Liu Gongquan, Ou Yangxun and Yuan Zhao Mengfu in Tang Dynasty)

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2. Qin Shu's eight-body refers to (Da Zhuan, Xiao Zhuan; Carving; Worm book; Copy; Book department; Zuo Shu; Official script)

3. Song Sijia refers to (Su Shi \ Huang Tingjian \ Mi Fei \ Cai Xiang)

4. The word "brave bully" is outrageous (sideways, strangled, angry, squatting, plotting, plundering, pecking and licking).