Artist.

Japanese name: 碧空 (Hekikuu) (reading is a best guess)
The other name: 抹茶ペンギン (Maccha Penguin)

h4.See also

* Pixiv account: http://www.pixiv.net/member.php?id=1934744
* Twitter account: http://twitter.com/penguin_1209
hekikuu (kanaderuyume)