Work is progressing fast on chainsaw guy.
Historically I always work from a black undercoat, but from the results of this experiment I can see a lot of brown in my future. It feels more natural in some way - its a more neutral basecolour to work up from. That makes it easier to get smooth, subtle blends and avoid the overly hard contrasts you sometimes get painting on black.
Anyhoo... Enough colour theory. On to the pics.