You have a decent design and a decent amount of themes. Some of the images of the themes are a little blurry though, you should change them.
How are you going to monetize this? I see there is a place for an ad but you are not even using it. You are starting to get good content but you are missing some essentials like a Terms, Privacy and Sitemap. Of course you should try and grab a contact form of well. It definitely gives off a professional look and feel. Best of luck mate.
Typo in the header "List of free wordpress template" should be templateS Agree on the blurry. With the "veryplaintxt", "WordPress II Silver" and a few other templates their preview has the header cut off. Regenerate it! "About_Sitename_" should be edited to reflect your sitename. Similarly the "About us entry on footer" should have your site's them summary. Clicking on "About_Sitename_" gives an error that redirects to your host. Create a custom 404 page that has an embedded site map to capture the user.
You should consider revising you logo, it should be eye catching and yes some images are showing blurry..