Last night, I started with the background. I have used a mixture of Transparent Oxide Brown and Ultramarine Blue for the darks and gradually lightened it by adding more Winsor & Newton Liquin to the mixture.
This morning I came back to the painting and thought of wiping some of the light area with a rag to make it lighter and have the canvas weave show a little. I'm still deciding if I should keep it or hide the canvas weave.