yes your ads placement is good try to use adlinks and google search also at your blog it would be good too.
Well, Here is a True Review about your adplacement. It is Just OK. Not good, Not Bad Reasons : You got ads All 3 sides of the first post. Well, Since you have That Much Surrounding, No One is sure whether they will be going to Click the ads top in the boxes(Those generate the most income for people) So all You gotta do is. Take the Left Side LeaderBoard from there, and put it right side under the categories or what so widget is that. so that Still People have ads even if they scroll Remove the 468* 80 ads under the post and put a Large Rectangle ads above your post (That generate a Huge Income dude) And you can keep the top banner Intact. Good Luck
Yes the placment of the 2 banners ads are very good.But like other sad you have space in the right corner of your blog were to put some adslink and at the bottom of the page.Use that space.