Check this: http://www.wayofthepixel.net/pixelation/index.php?topic=8110.msg92434#msg92434
Its like a worm cross tree.
And I like worms and trees...Good Job!
A background would work better actually... the piece itself is really nice actually
It looks good, but all that banding like Dr D said is making this piece look bad. You might want to work on fixing that on the branches.
Actually it was made for a game project, so it is kind of out of context on a transparency. :) Thank you for your compliments!