Step one:
First draw the shape of the cactus using curved lines.
Step 2:
Then use arcs to draw the ground below and the lines on the cactus.
Step 3:
Draw some short lines on the cactus as thorns.
Step 4:
Then draw an arc at the back and draw a triangle on top, paying attention to adding a line.
Step 5:
Use the same method to draw a small pyramid next to it.
Step 6:
Then use arcs to draw the feeling of clouds and draw the sun. Everyone can play freely.
Step 7:
You can also draw horizontal and vertical lines on the pyramid as the bricks of the pyramid.
Step 8:
Finally apply itLook at the colors and the pyramid is complete.