Looking at things from a unique perspective, I wondered what it would be like to have a surfer hanging ten on waves in a bottle (taken from the idea of having a ship in a bottle, only more fun). 4 colors total. I liked it best on Royal but it looks awesome on Turquoise and Denim.
Larger pic: http://tinyurl.com/ddbjov
More color choices: http://tinyurl.com/c9c4ax
I think a lot of people doing that contest were content to just meet the technical requirements of no more than four colors and no halftones and all that but you also worked in a visual concept of what less is more could mean, so good job. Hope I see more contestants do the same.
Larger pic: http://tinyurl.com/ddbjov
More color choices: http://tinyurl.com/c9c4ax
Enjoy!