Carefully add a great many closely spaced parallel lines to look like slats on the barrel. Draw some tall, spindly grass with pointed shafts that overlap one another. Fill in the space between the barrel and the house with some short lines, tiny ovals, and other odd shapes. Complete the branches at the tops of the two trees with a mixture of straight and jagged lines. Sketch long and thin winter clouds, with both gently and sharply curving lines, to fill the sky.