I like the contrasting vertical and horizontal lines in this drawing, along with the tattered sheets of bark sort of exploding out at you. I kept it pretty clean in order to preserve that effect, forgoing some of the gnarly bits found on the tree itself.
I found time for a little drawing today. And it is little, about five square inches. I like compact and small images and often start an illustration by tracing around the base of a coffee mug or roll of tape.