A colorful display
The lizard is showing off his colors amongst the cacti. Cacti in blossom or in
decline present interesting colors and contrasts. This is one of my favorite paintings.
All the colors were mixed with just the three primary colors. In theory any painter needs only three colors. But, mixing colors is an art that requires years of experience. The main problem with mixing all your colors is coming up with a matching color on a subsequent mix. So most of us use a lot of tube colors to overcome the challenge of matching.