No, you look as if you're about 16 though.
Besides, looks aren't everything - you could be a pizza faced oik and still have girls after you, it all depends on the chemistry.
Some people here will like you, others won't - some might even hate you (I've already had a few people message that they hate me) but in the end so what? As long as you enjoy yourself here, and you don't act like a moron, most people should be fine with you.