Hierarchy of colors in a cactus. I painted this illustration with watercolor on paper. I was inspired by this beautiful photo of cactuses in Arizona
by Sparklerama.
Wish I could grow such a big cactus at home :) My grandma had a huge cactus, 1.2 meters and she had grown it herself, but I think it took something around 30 years for her cactus to grow that big.