What Happened?

At some point in the past month, I kind of just stumbled into this drawing style here. I don't know what to classify it as, but I love using it and I'm borderline addicted to it now. It's loose, flexible, and has an almost painterly feel to it. This here was a drawing I did to see if I could put it to use in a picture quickly, and it was successful. Lacks some details and refinement, but that wasn't the aim, of course.