Why was my application rejected?
Obvious errors, from grammar, spelling, and format; or a blatant disregard of the rules in any way. For example, if you're underage. We will not make exceptions. If you have sections of your application that are not filled out with the requirements we have, you're going to get rejected. We try to state clearly our requirements in the application, and expect them to be followed.
Lack of balance as a character - particularly in the weaknesses and strengths. Simply put, if your character has far more strengths than weaknesses, or if your weaknesses are all very small in light of their strengths, then we're going to at least ask that this be edited for consideration. To clear one thing up, 'selfless, cares too much, emotional' will never be an acceptable three weaknesses for a character.