I recommend you add some padding between your pictures and your text. It looks like everything is jammed up. Since you are using Thesis you might want to checkout one of the videos in the members area about how to setup hooks to take care of your spacing problem.
Your design is too simple for my taste, evrtything is white with black letters, try to add some nice logo, and you have too many adds on your page
very basic design.. and text sticking to pictures, doesn't look very attractive. try to combine your ads with categories and popular posts in more cool way, otherwise, all we see are those ads.