Draw a simple pot or ground line
Sketch a tall oval or rounded rectangle for the main cactus body
Add one or two smaller side arms if desired
Round the top and edges slightly
Draw short curved lines or small spikes across the cactus for texture
Add a few long vertical lines to show cactus ridges
Outline the shape with a darker line
Erase any extra sketch marks
Color the cactus green
Color the pot or ground as desired