This is the Mariposa website design, a free, fully standards-compliant CSS template designed by FreeCSSTemplates.org. The photos in this template are from Fotogrph. This free template is released under a Creative Commons Attributions 3.0 license, so you are pretty much free to do whatever you want with it (even use it commercially) provided you keep the links in the footer intact. Aside from that, have fun with it :)