The only problem I see with canon related characters and others I have seen on here is they make no since. Timeline, powers, marks they have..etc. I read what they put about their character and wonder if they put in any thought about them before the made them. If they are like me who is rather new at role play, you find it hard to come up with some one new. So you go with what you can relate to.
All I can say ask questions, give tips on how to improve our characters, help us improve our imagination to come of with some one new.