3. Add Leaves
Draw a squiggly line across the page, just above the horizon line, to indicate the tops of distant trees. Add smaller branches to the trees with a few crooked lines.
Arrange dozens of leaves in random clumps by sketching shapes like teardrops. Place one more tree in the background and another bush by the roadway with squiggly, circular lines. Sketch several irregular oblong shapes on the road to look like rocks and stones.