Be sure to check and upvote the original post by 
@groundcontrol https://steemit.com/drawing/@groundcontrol/drawing-female-nude-in-recline-charcoal-life-study. Where you can find also step-by-step images of the drawing progress.
Here at SGoA we just loved the realism and the elegance of this drawing, and had to share it.
Female Nude In Recline by @groundcontrol
Charcoal on Strathmore Bristol Vellum.
15" x 9" / 38cm x 23cm