Artist.
Japanese name: 有馬記念 (Arima Kinen)
Site name: チューリッヒ公園 (apparently not related to the now-defunct bulletin board http://yy11.kakiko.com/zurichpark/)
https://www.pixiv.net/users/398560
https://www.pixiv.net/stacc/arimakinen
https://x.com/ando_teitoku00
https://x.com/arimakinen0002
https://x.com/i/user/2887485266
https://x.com/i/user/1301455789719130112
https://pawoo.net/@arimakinen
https://sketch.pixiv.net/@arimakinen
http://www.geocities.jp/zurichgarden/
http://www.geocities.jp/zurichgarden/_gl_images_/
http://geocities.yahoo.co.jp/gl/zurichgarden/
