I really like the little guy figure. From a distance it doesn't quite stand out too well and I'm concerned it might not work so well on different colored backgrounds or in print. Could you experiment with some things like this? I do like it though and am liking it more as I look at it.
Can you do a black and white version to see how it will work as a print version, also one on a black background? I sometimes use black backgrounds for slides so want to see if it will work well. cheers.
#1 - also, did you see the other competition I have running for hothousing.com? You might do a good job there too, it's a private competition, /contests/hothousing