I'm sorry, but there's no way that this is just 6 colors. I counted about 14. Now, I'm no genius graphic designer, but if this is 6 colors, I would really like to know how this can be interpreted as such. I have tried some designs myself, and haven't done well with coloring. If we can submit stuff like this, please tell me!
If, on the other hand, only certain people get to submit shirts with full color, I'd like to know that as well.
After noticing a trend of the same winners over and over again, yes, they are good, but I'm thinking this site may be rigged. All evidence seems to point that way, but then again, I may just be paranoid.