Over the weekend, I did more thumbnails and more research on indie posters. I've moved to the computer. I think what will make my poster stand out from the rest of craft and art fair posters is the indie style of the poster. I'm not really familiar with this style, so it's pushing me out of my comfort zone.
I agree with Kelsey's comment that I should stick with one of the existing cities because those define more of the indie style I am trying to push.