I think the old man’s painting skills are very good, because his paintings are lifelike. The speed of his painting is not only very fast, but also very good. His painting speed is very fast, and the similarity between his paintings is also very high. This shows that this old man's painting skills are very strong. If he didn't have painting skills for a long time, he would not be able to reach this point. So I think his painting skills are very good. I think the most important thing is not to focus on his painting skills, but to focus on what he did, which itself is extremely meaningful.

This old man in Xi'an is a sketch enthusiast. After the outbreak, he saw the greatness and hard work of medical staff, so he wanted to record these medical staff through painting. The greatness and hard work, I think this matter itself is a very meaningful thing, because medical staff are indeed very hard, and they also need some way to let everyone know what their work looks like and how hard they work. And this old man was able to notice this and use it as the object of his sketch. I think this behavior itself is quite meaningful. He expressed his feelings for the medical staff by recording portraits of them at work. It was a kind of respect from them, because he said that the medical staff were indeed very hardworking and great, so he wanted to record them through paintings to record this period of history.

From these images, I think the old man’s paintings are also very good. His painting skills are very good, the paintings are lifelike, the lines are very smooth, and he did draw a lot. This shows that he is able to persist in doing this, and from one of his fantasy photos, we have indeed seen that medical staff are indeed very tiring and hard on an ordinary day's work. I think this is also true. What you want to express is to really let others notice this group of people.