Two days of underpainting brings this bone-in-the-throat result. I'm using a mixture of burnt umber and burnt sienna, very dry and mixed with just a drop or two of turpentine to thin it. It does almost as fast as watercolor and is a supremely lean and siccative base for the rest of the paint.
I'm guessing it will take two more days to finish laying down and then balancing these tones and then commences the painting.
Because I use walnut oil as a medium the caterpillar picture is drying slowly, so there is no picture of the varnish-enriched colors. In the interim, here is a drawing literally found on the cluttered cement floor of the basement:
It's about 9" x 12". I'm going to finish it up and modify it to fit a 38" x 24" canvas.
Here is a snapshot of the painting about 90% done... the crucial point in any picture. As Szukalski told me more than once, if a picture is properly constructed the last 10% of effort will yield 50% of the effect.