Okay, so here's step 2 of my Yeti illustration. A slight watercolor wash. Just two colors, brown and blue, to fill out some of the shapes and give it a little texture. The image is now a mid-tone that I can work lighter and darker.
I'm starting to realize painting a Yeti in the snow, among white trees, is sort of like the old "polar bear in a blizzard" painting.
From here on out, the painting will go digital. I may try a few different lighting scenes, to see what works best.