Hi Lakov,
it is hard to judge, as you are obviously not yet finished with this.
it looks very good so far - especially the face & eyes.
However, the first thing that struck me is the foreshortening of the arm on our left. I have to assume that this is from a photograph - and even tho it is a lovely pose, i think there is some distortion going on there.
I have had the same trouble with photos myself. So much so that i have resolved to have a professional photographer take photos for me that may suggest this kind of problem.
as i am a bit of a novice myself, please take my comments as uninformed observation.
