Wow...I have been surfing digital art work for ages and this is one of the best PG images out there. There are two things that caught my eye: 1. Her left hand look more like its in a mitten than a glove, no fingers details. 2. The pixal distoration on her right leg. Besides those two...Im loving this illustration.
(Appoligies if this is a double post, my phone crashed in the middle of trying to send my last comment and I don't believe it posted).
Lovely use of forms, I love the details in the hair and face. I normally would say I'd like to see a wider range of hue in the shadows, but I think the strong primary scheme fits the image and character well.
Her upraised hand seems a bit on the small side to me, and bent to far (the protruding wrist bone is what really gets me, that feels like it wouldn't be very comfortable). The hand itself seems to be a mix of a fist and a "pointing at yourself with your thumb" pose, I think it would read clearer if it was one of the other.
Over all I think it's a string piece, the forms are well done and I enjoy the texture you managed to add while still keeping a clean painting method.