This is the result of a photoshop brush test. Sometimes I like to try other people's brush packs and to just figure out what each of the brushes does I take it for a test drive. When I started this I had no plan in terms of what I was going to draw, just made some shapes with the brushes, eventually something started looking like a tree and off we went... I actually love this process of painting, and some of my best works have come out this way.
Cheers!