I'm not crazy about the 2 squares being so close and then a skyscraper. Maybe you can get the ads more in line with the content seeing how its a blog site.
The top banner ad 300 x 250 is so close that it hits upon the 300 x 250 ad spot at the right side. May be you can put a little space between them.
some what ok now. bt u can get better themes which are highly optimized for adsense and use those in the blog