Had it with artificial, old-fashioned, stagey royalty-free images that literally scream, stock photo? An alternative kind of agency, which uses personal mobile photos from a range of enthusiasts and professionals, today launched out of beta promising to lend a more natural and less overtly slick look to marketing, advertising and editorial content. Twenty20, a crowdsourced commercial image catalog, specifically targets the mobile, Instagram-centric, social networking sensibility of contemporary companies and encourages the use of personal mobile photography for visual campaigns.