What joke did the shepherd boy make about Du Fu?

And there is a basis for life, which shows that the shepherd boy has accumulated life experience, is good at observation and is not afraid of authority.

1. The shepherd boy saw two cows wagging their tails and fighting fiercely in the bullfight. After reading it, the shepherd boy felt that the painting was different from the bullfighting scene he saw in real life. He laughed at the painter's mistakes, which some people regarded as treasures, so he smiled.

2. The shepherd boy saw the cow in the painting "laughing" and thought that the painter's smile was against the real situation of life, which reflected that the child was sincere, naive, reckless and not superstitious. Du Fu's Smile is to solve the embarrassment of painting mistakes, and also has recognition and praise for the shepherd boy.

This ancient prose is to tell readers that we should observe more and observe things carefully in life, not just by imagination. I also hope that readers can understand that painting art should also proceed from the reality of life, take real facts as the basis, and observe more, so as to really draw works of art.