himawarihata_ninzaburou
Artist.
Japanese name: 向日葵畑 任三郎 (Himawarihata Ninzaburou)
See also
- Pixiv account: http://www.pixiv.net/member.php?id=3994193
- Stickam account: http://www.stickam.jp/profile/tn23
- Twitter account (unconfirmed): http://twitter.com/himawarinisan