I really like the way you chose to portray her. The shirts, the low-cut shirt, the free hair. The best touch by far however are the earings, they just add so much to her both in terms of who she is and in fitting her teenage character. The way she is standing says a lot: the posture and the eyes proclaim her as being cool and no-nonsense, but something about the face still seems to say that she is an approachable, friendly person. Really great job, keep it up.