Upload & Sell: Off
I've gotta go with the first one as the better of the two. While it's not a "portrait" in the conventional sense, the lines, curves, textures and juxtaposition of light and dark with just the right contrast was masterful. The contrast in the second one is too harsh to suit my taste. Different strokes, right?
You have a wonderful model with whom to work. Congratulations to you both for making some excellent art here.