2. Then draw a square border on the periphery, draw pine trees on the left and right corners, draw mountain peaks on the left and right sides of the border, and there are birds in the sky.
3. Now you can draw. First, draw the background in light blue, the river in blue, pine trees in brown and green, and the sun in red.
4. Continue to draw the peaks on both sides in gray, draw the middle border in brown, and draw the ground in light cyan, which is basically finished.
5. Finally, we wrote the ancient poem "Chai Lu" in the frontier fortress, and the beautiful picture of this ancient poem by Chai Lu was completed.