Step 7 - Adding the blue tones

The next step is to start to push the shadows around a bit. In order to do that you need to start adding blue tones. Blue is the foundation of a shadow. Centuries ago the Renaissance Painters discovered by creating an underpainting of cobalt blue (shadows) and white (light) they were able to execute more realistic shadows in the top layers of the paint. The dampening down effect of blue is similar to the way atmosphere effects areas where light is diffused.

In this case I am using a mixture of medium and Prussian Blue fluid acrylic to form my shadows. Notice how it is reacting with the previous colour layers.