Okay, so I really blocked out my revisions, checked email to try getting details about the other commission I was going to work on, and it turned out I got emailed by the indy RPG customer who uses me repeatedly, so I took a break to do thumbnails and a little research for the stuff they want to commission.
I think I'm going to pause working on commission 2 to tighten up the current really really rough drawings, then break for the day.