Your face has a lot of masculine features. It was more noticeable in your previous avatar pic.
But really, who else but pedantic geeks like me would pay attention? You are smokin' hot. I will promise that any random guy passing you on the street isn't going to be thinking about how masculine you are.
Besides, I've seen GG's with more masculine facial features. They still manage to come off as very attractive (or in some cases, more attractive because of it)