yamada_tokihiko
Artist.
Japanese name: 山田鴇彦 (Artist specifies reading as Yamada Tokihiko on his Twitter account.)
See Also:
* Pixiv Account: http://www.pixiv.net/member.php?id=23314441
* Blog: http://mekutakarito.soragoto.net/
* Twitter Account: http://twitter.com/mekutakarito