Thanks!
The faces came out well with the contrast paints, for very little effort. If I had time to retouch them before the big game, I'd probably keep some items of clothing as they are (as silks, etc.) but repaint others in duller, flatter tones. But the main thing is that they're done.
Here are a couple more monsters for the game: a pair of giant leeches from Reaper Bones. These, like that fish-dog thing, are from the "black" line. They've got much harder detail than the conventional Bones, and far fewer mouldlines.
I did these with contrast paints over black/grey/white. Very quick and pretty decent, I reckon. I suspect that's going to be my go-to method for RPG monsters for some time.