Justin & Erica Watters believe that art is best when shared! They encourage you to share their work, as long as it's for non-commercial purposes-- like on a blog or as a desktop background. You must credit them, and link to Rogue Images. They have licensed their photos under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License (except where otherwise noted).
For more info, or to inquire about permissions beyond the scope of this license, please visit: http://www.rogue-images.com/Licensing.