Barrel Cactus with Echeveria Coloring Page

A round barrel cactus dominates the composition with twelve vertical ribs, each decorated with regularly spaced spine clusters that create a rhythmic pattern down the plant's body in this detailed coloring design. The echeveria at ground level displays overlapping pointed leaves arranged in tight spiral formation, with each leaf having a distinct tip and curved edges. The spine clusters on the cactus vary slightly in size, creating natural variation while maintaining the structured vertical lines. The cactus ribs need gradient shading to show their curved surfaces, moving from light centers to darker edges along each vertical section. Try golden yellows or desert oranges for the barrel body, then use burnt sienna or chocolate brown for the spine clusters to make them pop against the main form. The echeveria leaves could feature jade green with purple-tinted edges, or experiment with dusty blue-green tones that fade toward the center of the rosette.