Great light and shadow. Very lovely work.

Agreed and I like the lace, outfit and hair; however she is off balance (torso upward should be 12~15' right - viewer, or to her left).

 I'd lose the pumps and go for a simple black short-top booted heel, or slip-ons (leather shoe/ballet sort of thing). Lace frilled bobby socks would work (matched to cuff lace).

 Cannot work-out what that is (background) above her right forearm/hand.  Would be best to lose that altogether as it detracts from the image/render.

 Cheers,

 Rick.