Your current placement of ads is good. If you still want to go for change you can place an banner ad in the header and text ads after the post.
Perfect Ads at the top. On the left, remove the small text ads and instead of the big square image ad make another text one. I think it'll look better and might get you better clicks. Just a suggestion, but nonetheless everything looks flawless.
I need some advice too. My main page is MiamiCarpetCleaning.Com - I put all my adsense on my Reciprocal link exchange pages. And I just created a blog at incometaxesillegal.blogspot.com any advice would be great. Thanks in advance