Tonalism - this may not be the best painting to show you what I'm doing in the Tonalism Class but for me, this one is instructive. On the bottom you can see the sketch for this and several other paintings.
Then next, the first attempt at the underpainting. There wasn't enought information so I added more. The one on the top is after 2 coats of glazing.
I don't know yet how many layers this one will have. Given that I want the foreground to be fairly dark and the hills in the back sunlit from the early morning sun, it may take awhile.