I have to second Adam's assessment of the top of her left boot.
The way you've shaded her jacket makes it look like she's leaning forward to expose her cleavage to our view.
Whilst not necessarily bad, it doesn't match the pose of the doll, so if it was intentional, I suggest accentuating her cleavage line with a darker shade.
If it wasn't, I still suggest doing that anyway, but you might want to adjust the shading on her jacket. Personally I think it gives her more character, but I'm a bloke, so feel free to dismiss my opinion as chauvinistic drivel.
I'm really impressed by the way you've shaded the hat and hair.
One small thing I noticed is that the transition between blue and dark grey on the right side of the band of the hat is slightly jarring.