One of the practice runs I did for the Butcher speed painting I did at Gamescom. I scewed up and grabbed the wrong folder in the rush to get off the stage before the lights went back on, so I don't have the live session files :\
But here's what I planned to do. I don't think I was able to take it as far on stage, but hopefully I was somewhat close.
Practice: 2 hours of painting over pre-drawn clean linework.