Nothing personal, but this is one of the worst sites i've ever opened (or there is something wrong with my mozilla ). Reminds me to a page that is loaded only 20%. Do not improve (everything is terrible), just make all new. Check some other examples like unity asset store or something else. If you're not that experienced in web design, better find a free template and start from him. Idea is nice, 3dgs really need something like this, but i do not think anyone will buy something from this sits.

Please don't get me wrong, i only tried to be honest.