Who knows whether this bronze painting is hand-painted or printed? Is it the original author?

First of all, this bronze painting is definitely not the author's original work. Because the copper-clad painting is a mixture of upper copper and inner brass, this technology is almost lost now, and few craftsmen know this. Due to the complex technology, there are few successful works, which are generally very precious handicrafts. The author of the inscription, Chen Hongshou, was a famous painter in the late Ming Dynasty. He took Water Margin as his masterpiece, and his printed works were handed down from generation to generation. His book illustrations and prints have been handed down from generation to generation, especially figure paintings. So, you may be a handicraft based on his paintings. Although it is not original, it is also quite collectible.