My adsense placement

I was wondering if any one could help me out, i have a wallpapersite and my cpm is goiing down with the day, i ahve canged the layot from my site, but it doesnt help, changed the adsendse placements, it did help for a day or 2.
Now i want to ask if any one form you guys could help me out and tell me what the best place is on my site to get the best results again,or colors to work with.
www.tws3d.com

 

The site is a bit cluttered. For yoru 250 x 250 ad unit on the left, try making it an image only ad unit. It may work better since it can blend in with the images on the right.

 

yeah it look good now. but make sure counting how many ads you put on one page and not go over the limit ads no. of google. good luck.

 

You can place 3 ads on a index, so that is ok,, btw the imageads onley dont work, cpm drops with 1,,

 

your placement looks good but i see that you are using images near the google ads. this may be a problem. i think you must read http://adsense.blogspot.com/2006/12/ad-and-image-placement-policy.html