Artist.

Japanese name: 三咲口 ぷく (Misakiguchi Puku) or ぷく
Circle name: AFTER MOON (the other member: "Yukke)":http://www.pixiv.net/member.php?id=18026 
(This artist is also a member of Yukke's circle, "Y-NRG SYSTEM)":http://www.h3.dion.ne.jp/~jyujika/index.html 
Site name: AFTER MOON+
misakiguchi puku