Kedamono Kangoku-tou is a doujin circle led by Rasenkiryuu, a web novelist/fanfic writer.
Most of artworks on his accounts/sites are actually illustrated by Tetete, an artist of his circle. Their weird Touhou 4koma series are plotted by both of them and illustrated by Tetete. The NicoNico video version of the series are encoded by Rasenkiryuu.
Artist name: ててて (Tetete)
Circle & site name: けだもの監獄島 (Kedamono Kangoku-tou)
The webmaster of the site / circle leader: 螺旋気流 (Rasenkiryuu)
Rasenkiryuu's solo circle name: けだ缶 (Kedakan)
https://www.pixiv.net/users/1092535
https://www.pixiv.net/stacc/kedakan
https://twitter.com/Et5uPnqRDOf69re
https://twitter.com/UEnHKdrbLkcgaue
https://twitter.com/sbScFP0IIkfCkDt
https://twitter.com/intent/user?user_id=1139467561857236993
https://twitter.com/intent/user?user_id=1403183749462962181
https://twitter.com/intent/user?user_id=1567872853894373376
https://seiga.nicovideo.jp/user/illust/1421101
https://seiga.nicovideo.jp/user/illust/1633973
http://dic.nicovideo.jp/id/4278509
http://www.nicovideo.jp/mylist/17418880
https://www.nicovideo.jp/user/1421101
https://nijie.info/members.php?id=443881
https://sketch.pixiv.net/@kedakan
http://kedakan.sakura.ne.jp
http://kedakan.sakura.ne.jp/kedakan
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG02580.html
https://twitter.com/KireinaTetete
https://twitter.com/TqHQYtHRCA3r1Q4
https://twitter.com/azDow15WtFYYQP1
https://twitter.com/mkmcrobx53betqd
https://twitter.com/tetete_oppai
https://twitter.com/intent/user?user_id=1287395705934381059
