Li Yuxuan's calligraphy

1. The calligraphy of Zhao Zhen, a calligrapher in the Qing Dynasty, was originally mounted with a pair of six-foot couplets: seal, Zhao Zhen, and heavy seal?

2. Li Yuxuan, a calligrapher in Qing Dynasty, originally used four feet to mount couplets.

Wu Chaoyue, a calligrapher in the Qing Dynasty, was the first to mount a five-foot seal script couplet.

4. Wu Hai, a calligrapher in Qing Dynasty, originally mounted couplets in six feet. ?