I don't like the eyebrows, they make your face WAY too masculine :/ I don't know, maybe it's just the color of them is too dark or the shape isn't right. But aside from the fake brows you're very pretty! The costume is lovely.
This cosplay costume is one of the best i have ever seen for poison ivy, kudos. one question though, is that your real hair or a wig? If its your real hair how did you get it that beautiful shade of red? you should do ariel.