the notice and the thread about what the site about is great and your buttons are nice and sharp looking.
one thing you can do to help get the word out about your site is to use the blog feature and the CMS along with the forums.
see how i use my CMS.
http://animerealmz.net/ and the forums aswell. i even enabled the sidebar on the forums to keep things i want in focus.
things like that will help get the point of you site out. also in the ACP you can change the meta words to better describe your site to serch engines.