The themes are looking nice. Did you create them? In the footer I think you could benefit from adding "contact us", "privacy policy" and "about us" links. Also, if you intend to add more number of themes it would be beneficial if you added a search field on the top of the website. Then people can enter relevant keywords to find the perfect template for them.
I think you should reduce the sizes of themes displayed first, then reduce the footer margin of your site (the black portion). Arrange things like Home, Blog and social networking sites like FB, Twitter in a systematic way. Which will give you good look of your site. Put "Term of Use" after "Category". Write brief introduction below your site's name what is site about? Hope you are able to get things i have tried to explain. Change them and your site will be awesome.
Thanks for your opinions, I was actually thinking pretty much the same thing. I'll be slowly making changes to the site as well as adding more templates and content to the site.
@learnwebsitedesigncom Thanks for considering my suggestion, hope at the end you will be having fabulous website for which you will be fill up with proud!
I think look & feel of the website is not professional. Please try to design your website professionally. So that visitors will be interested. Your navigation is user friendly