Bottom line: Gu Lou is drunk on all sides.
Signature: Xin Chouchun, Chen Yongjun
This cursive script is hard to recognize, but it is still wonderful and of high level. Looking up the cursive works in recent years, it is found that the word "Chen" and the word "Yong Jun" are separated in composition, and the cursive works of the word "Yong Jun" are basically similar to those of previous years, so it is certain that they should be cursive couplets.