Generally, bareheaded photos, that is, one-inch or two-inch headshots, are mainly used to examine the five senses to see personal character or feelings; Of course, if you are very interested in this position, you can attach photos (life photos, sports photos) that you want to show your personality or hobbies, but generally it should be standardized and not unconventional. If you have questions, don't ask them, lest they backfire.