Re: Road Trip to Moon
Agreed, this is a great design and if you can get it down to 6 colors, please resubmit! It deserves to print
I would suggest dropping the green, and making the yellow-orange building color into straight yellow (to match the moon). That means you need to get rid of one more color, but the design really works well with the colors it has. So, I think making the darkest blue buildings a halftone of the medium blue and your black tshirt background could solve that. They wouldn't look as nice and solid as they do now, but if you did a good job then I think it would work out great.
If you can't get it down to 6 without sacrificing what you like about your design, go submit on Threadless, see how it does!