Watercolor is relatively unpopular if it is pure art.
If you design, I can only say that environmental art, clothing and animation are the three hot spots, and you can see the rest.
Optical fiber is relatively easy to enter, and there are many talents in optical fiber. . .
Only students in the same department can change their major. It's just more convenient to change majors in the same department. If you change your major from a different department, you need money. I haven't changed the details. Hu Mei Student Handbook and so on are all mouth-watering.