I like the graphics and the content. My only issue is with the all too prevalent Google Adwords in the main part of the page. Maybe try moving to the side or placing it on the bottom. Or, at least taking it off of the home page, reclaim your homepage!!
The site looks clean. My only problem is the google Adwords being the first thing I see. The center top/above the fold position is the most valued place. This should be the spot where you "grab" visitors attention to tell them what you are about. By placing adwords there you make your site look like a billboard for google ads, not any different than all the other thousands of google billboard websites.