Painting process

I started a new painting and thought it would be interesting to document its process start to finish. Here is the first installment. The first image is a thumbnail from my sketchbook, and the rest are photographs of the painting as it develops. I am using oil on gessoed board. My thumbnail idea was very light, airy, sweet. But as I drew on the board I decided to go for a slightly creepier look, maybe because of Halloween?