I'm really good with face and bone structure when it comes to hair. I think you would look amazing with a pixie cut. It would bring out your eyes and give you a sheek model look. I also don't think you'd have to fear an afro or east west effect because the texture of your hair seems wispy or delicate as opposed to thick and bushy like moi. As for growing it out, it depends on the person, but I grew out a pixie cut in one year flat eight years ago. (I really liked it, by the way, but it was expensive to maintain.) It was at my shoulders by the end of the summer. A year after that mid breast.
I still remember my roommate saying "You are such a *****!" because hers never grew past her shoulders no matter what she did. Actually looking back on it I think she may actually be a cherub curly girl but breaking her hair with too much bleaching, heat and straightening.