midou_midori
Joint account of two people (cosplayer & artist).
* Circle name & joint pseudonym: 御堂 みどり (Midou Midori)
** Pixiv account: http://www.pixiv.net/member.php?id=29221736
** Fantia account: http://fantia.jp/fanclubs/2779
** Patreon account: http://www.patreon.com/moao_cos
** Twitter account (currently used by the cosplayer): http://twitter.com/moao_cos
* Solo pen-name of the artist: 秋元 九 (Akimoto Kyuu) (reading is a best guess)
** Old name: Q先生 (Q Sensei)
** Solo twitter account: http://twitter.com/QtheFINAL