16/f Am I ugly?

Lately I've been feeling ugly constantly. Please don't hold back and if you can, give me some constructive criticism on what I could do to look better. Here are a variety of pictures so you can get the full effect: smiling: http://imgur.com/Dn4uc serious: http://imgur.com/H1oYv hair down: http://imgur.com/y8JtN hair up: http://imgur.com/kwrav body shot: http://imgur.com/5hDyq