MAGNIFICENT!!! Everything's so detailed and well drawn! Especially the face and hands (which are the most difficult things to draw for me). My fave part would be the EYES. They are so beautiful and detailed and life-like. She really looks like she's strong and powerful and in deep thought.
I try to be sparse with comments, because I know I'll write a sodding Iliad of praise if I do start, but... the TEXTURE, the light, the coloring, the DETAIL, the ideas... Pictures like these make me all warm and happy inside. I agree with Treyos that the left thumb seems a bit off, or rather the index finger seems off, but for the picture as a whole I'm nothing but awestruck. Fantastic work.