Threadless Reject

This is my first design submission to Threadless (a crowd sourced T-shirt design and retail company).  I worked hard on the design and I figured it was a good one.  Even so it did not get voted/rated enough to be printed.  I'm not sure if it's because the design isn't good enough or because I don't have a big enough following that will go on there and vote for it, or maybe I didn't do a good job of communicating to my following in an inspiring way.

I'm interested in your feedback.  Got any ideas of how I could improve this design or my campaign for votes?  Email (scott@moon-man.com) or tweet me (@scott_mooney).

Cheers!
Scott