I took off some sticks and leaves
from the tree in front of my room, and get started to think how to make a paintbrush.
I took the stem off the leaves and shape the stick into a bold straight one. I
tied them up with a string to make sure they can hold together, and mixed some
mud with water to make the pigment of the cave painting. I drew a bird, or I
tried to draw a bird, but the brush didn’t hold the pigment, so the work
doesn’t seem so good. I hope I could do better next time.