I think the lights and shadow in general are spot on, except for the shadow under the neck, I don't think you need that when there is so much light comming from the back. Also the shadows on the arms and fingers with the different colour also aren't needed because everything is in the shadow already.
If anything the light should he coming from below because the light from outside is mainly hitting the floor inside, then reflecting up, and lighting the lady from below a little bit.
And the "Terminator" eye is too bright, but I'm not sure if that was a stylised choice.