Overall, you have done a very great job with this piece.
One of my favorite things about this picture is how you interpreted AJ's outfit. It looks kinda casual and beat up, but stylish and attractive at the same time(especially the belt!).
With the hands, I feel that the lines indicating the skin fold thing is too dark, and thus makes the hands look odd. Also, her ear seems to be somewhat small.
However everything else about this piece is awesome! I absolutely adore her expression, and the sketchy, diagonal lines and colors remind me of old sepia farm photos!