Thanks for the feedback guys; I unwittingly posted the wrong image for the mockup. It was supposed to be a screenshot of the store, but Nukeling and I had miscommunicated with the dev team, and as a result they left out the store page. It should be done this weekend.

I agree with most of the points brought up; it does need work. I have to clarify something here though: The framework for the exchange is mostly complete, so we're working on visuals. The point was not to have a finished product, but rather to create a proof of concept to allow us to do layout planning. This is the first iteration of a design for the market site that will be on exchange.projectwyvern.com (currently non-operational). The look and feel will change as we refine the concept.  We can't simply modify the www.projectwyvern.com site as it hosted on SquareSpace (it needs to be migrated to our VPS instead).

Again, thanks for the feedback, we'll keep revising until it's good.