Artist.

Japanese name: 十那 (Toona) (reading is a best guess)
The other name: Ⅹ那 (X na)

h4.See also

* Pixiv account: http://www.pixiv.net/member.php?id=9262533
* Twitter account: http://twitter.com/x0hna
* Twipple photo images: http://p.twipple.jp/user/x0hna

x na