One of my classmates happened to bring some "special" paper to school one day, and they gave me a piece. Since the materials that the paper was made from are of a decidely "organic" origin, I wanted to bring that out in whatever I did with it(The paper's made from dried elephant dung, if you really wanted to know). It started with leaf-like shapes and berries, and evolved from there. There are a few issues I have with this one, but overall, I still like it.
(Note: The snake is the only character in the Bible that I actually like. So the snake here doesn't represent anything bad; he represents the same things as the snakes on the caduceus)