You really have a lovely piece here. There is a great tone and form balance with a good play of color and texture. The thing could be adjusted is the swirls that you added as the mid-tone orange you have at the top left of the painting is intersecting in an odd way with the hair. I would either place the hair in front of it or get rid of it all together personally removal might suit it better to add more lightness to the top of the frame because it seems to go into the head but never exit. The eyes are great but the lips could use some more tonal quality they look a touch flat and with that much light values floating about there should be a bit more specularity to to or color tone variation. It would really add some depth to it. The body is somewhat flat as well and coulr use some of what you did with the face to give it more solidity. You have a wonderful piece I really do enjoy it and a few tweaks to it could bring it to that really solid level. Bravo and keep up the great work .