First, I realize an impramatura on my transfered drawing. Then, I lift off the lights with a rag and an eraser. I paint my background as a first value reference. I lay down my underpainting slowly starting with the darkest colors. I compare all surrounding colors to the darkest and “tile” carefully. This early, I rely on my value and color study (you can see it on the left) At this stage, I focus mainly on values, but I try to get the chroma and hue right whenever I can. I work slowly all the way down. I build a solid and opaque layer. I alternate between hog bristle and sable brush depending of the desired softness. Remember, this stage is the underpainting, or “first painting”, There will be time to correct and refine later. Now I start my overpainting (or “second painting”). I use glazes to correct the transitions and improve edge quality. I also correct the hue and chroma if needed. To bring out the lights, I use a technique called scumbling. I apply opaque light colors over a darker underlayer. Remember : shadows can be transparent but lights have to be opaque and solid. Now, I start another layer of glazes : it’s my “third painting” I refine even more until I get the desired effect. “Fourth painting”, still more refining to do. I go over the painting again, looking for final details to correct.