I can't give advice on something so well done. I do have some observations on what look a little off. I may be wrong since I don't have your reference material. Her right arm from the elbow down looks to stick like. It doesn't feel as if it's extendinding back from her arm. Also her right foot with the sneaker looks a little off. Otherwise, keep it up, it's shaping up just fine. :)
This is wonderful and realistic, but I can't help but feel her right arm isn't correct. It seems like it can't extend that far up, but I could be wrong maybe it's just the perspective. It's still very good XD
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