HI all plz take a look at my web gallery http://www.superimagens.com.br and please give me any suggestions to ADS color and positions.. thanjkz!!
You have a big empty space near your images, so I suggest you put there a 336x280 block and get rid of the ones that are above the images. The main attraction of the page is that image, so it is better to place the ads near it, so they will be more exposed.