BillThis is an excellent piece. She reminds me alot of my niece. Im on about my 15th portrait and I'm still not to this level.
Two things I noticed when I saw this.
1) The roundness of the iris in her right eye. It seems to have lost its shape around the bottom.
2) There seems to be a nice range of midtones and highlights, but an absence of the darkest darks.
I really like this drawing and would like to see the original photo if that is what you worked from.
Robert