Cheshire from Pandora Hearts! Not sure what else to say, I'm a big fan of his character :D The photographer for the outdoor photo shoot is candlelights-chaos.deviantart.com, the costume itself was made by a friend. (acroterion.deviantart.com)
The wig was made by Shinigamia (http://www.cosplay.com/member/197483/, nocturnax.deviantart.com)