Personally, I think it is better to wear formal clothes, which symbolizes that we are about to leave the shelter of school and bravely meet the challenges brought by society. But I also think that other clothes that tend to be youthful and lively are also necessary, which is also our memory of our school days. I suggest you shoot graduation photo with two or more sets of clothes with different styles. When I say graduation photo, I don't mean graduation photo official!