I need help from SEO Gurus. I am currently working on a project http://www.wallpaperscollection.net . Site at Google first page from targeted keywords and getting about 50 clicks from adsense daily, but earn only $1. I don’t understand what the problem is. Is SEO problem or anything else? Please review the site. I need your valuable suggestions. Thanks.
SEO has nothing to do with your EPC. Ads on wall paper sites just don't pay squat because it's considered largely useless traffic, unless you are fulfilling a specific niche. SEO would only affect your rankings, which you claim is already on the first page, so try to get on the first result. While this should increase your visitors, thus getting 100 clicks and $2. But to raise your EPC, try and focus on a more profitable niche.