I would advise you to make it more complex and change the background white color to make it more appealing. The site looks very simple.
Given that Project Powder is a free to play focusing on customizations via microtransactions, I'd recommend filling up the item shop and cash shop entries in order to give players an idea of what they can upgrade to. We ran an article about Project Powder a while back, come have a read if you like. http://www.fatfoogoo.com/2008/08/outspark-brings-free-to-play-project-powder-to-open-beta/ Great start to the wiki though, keep up the good work!