by Lisa Larrabee
One technique that I love to use while drawing or painting is a reductive process. You begin by using your chosen medium to tone the surface. You can use graphite, charcoal, soft pastel or oil paint. This establishes a unifying value to work from. The reductive aspect is that you remove the medium to reveal the lighter values underneath. You can erase any of the dry mediums and wipe away the oil paint. In this demo, I used both Q-tips and clean brushes to remove the pigment. A little OMS (odorless mineral spirits) can remove the paint back to the surface.