Artist name: 如杏那(ジョアンナ)
Pixiv profile: http://www.pixiv.net/member.php?id=204413
https://www.pixiv.net/users/204413
https://www.pixiv.net/stacc/daihukutan
https://twitter.com/da12ku
https://twitter.com/intent/user?user_id=111475541
https://sketch.pixiv.net/@daihukutan
https://twitter.com/a_k_1_r_a_
http://p.twipple.jp/user/a_k_1_r_a_
http://twitpic.com/photos/a_k_1_r_a_
