You're quite a bit off on the anatomy front. The pose isn't bad by any means, and certainly fits into the character, but one of the thing I take issue with is how short some of her limbs are. Just because one arm had to be made smaller because of foreshortening, doesn't mean the other arm has to be as short as the foreshortened one. The piece isn't that bad, by any means, it just looks off, and the limbs look either too short or too long for where they are facing in terms of perspective. I know this is an issue I have a lot, too, and yeah... Foreshortening and perspective are difficult to say the least. Keep working on it, though!