Personally, I don't think we should go Save 150 yuan first, and practice there for two days first. First of all, go to him to buy materials, and then sell him paintings. The basic process is as follows. It seems simple to do that, but it takes time to do it well. If you don't do well, he won't accept it, so you are still not worthwhile. I advise you not to go. That kind of thing is more suitable for grandparents.