Wow okay that was cheesy and distasteful as fuck, I feel like I just dropped thirty IQ points just for saying that. I am sorry. Honest to god.
In any case though; look not everybody is going to like the same thing, but just because you don't like something doesn't mean that you have to bring other people down. Like, how would you feel if you drew something you felt particularly proud of, then somebody came along, decided to be an ass, and said that piece of art looks like something a fish shat out after eating a bean burrito? Unless you're...like...masochistic or something...then it wouldn't make you feel too good, would it?
If you're that rattled about how its MLP fan art, then try just...I'unno, ignoring that it's for MLP and just pay attention to how good it looks instead of what it's fanart of?