These six, the last from my great sweeping-up of all the accumulated drawings from several months, have something in common. In all of them, I was trying to use mostly the shadows and darkest places, rather than lines, to indicate shape as well as the fall of light. It works well. For example, I think the most successful bit of this one is the shadows defining her right hand.
This next one too. (Same person, left hand.)
Same day, therefore same person modeling, in this next one. I was just really taken with what was emerging when I looked for the shadows and reduced a lot of grays to black and white.
The last three are also all of one model, and from one day. The approach was quite different than in the above three, but had a similar narrowing of the range of shades. Not too many grays. Black, or white. Lines and the edges of shadows show the contours of muscles more than they do the outlines of the body against the background.