wedding photography

My friends take wedding photography I think is very good, but do not know why, I found they were not very satisfied with their beat wedding photography, and very satisfied with others beat wedding photography. I think people are likely to do, to own request will be relatively high, so people see things, would say that is relatively good, and feel that they do not good enough, but I was such a person, my boyfriend said many times I such problems, but I just can not change myself.