Shapes in the environment are clarified further, so the larger figure 'pops' out even more and the background 'pulls' back. The interior color/shapes of the main figure are blended together - note especially the face and shoulder.

The space around the cooler small figure is built up with a warmer color so the silhouette shape 'pops' out.

technical info: thick acrylic tube paint mixed with clear medium is used for blending areas here