I forgot to bring my brushes to drawing last night. Fortunately, I had a few cheap hake brushes in my box, and I was able to lay in some light washes with those. This forced a change of style, which probably wasn't a bad thing.
A very helpful fellow artist lent me a small soft round brush during the break, and I was able to drybrush those dark gray areas in the background with that. The highlights were created with a large wad of paper towels and I was happy to let the pencil sketch do the heavy lifting in the facial area.