"In this world there's two kinds of people, my friend: Those with loaded guns and those who dig.
You dig."

Mostly trying some new brushes (By David Revoy), while also trying a different approach (No lines, etc) Works fine with that kind of (or lack of) light.
Might try that again some time. I like the idea of trying to make peoples know what you are drawing without as much "informations", and more "suggestions". Like the dude's clothes in the background, which are only a few strokes. That's like a challenge. (I basically like making my artistic life harder, i guess)