Some full-size images by this artist can only be found on the following Pixiv account, which should not be added as an artist URL since it is not the artist's but rather someone who commissions their art.
https://twitter.com/painterfiend
https://twitter.com/intent/user?user_id=4753410920
https://www.hentai-foundry.com/user/Paintrfiend
https://paintrfiend-blog.tumblr.com
https://www.patreon.com/Paintrfiend
https://www.patreon.com/user?u=9129575
https://picarto.tv/paintrfiend
https://bsky.app/profile/paintrfiend.bsky.social
https://bsky.app/profile/did:plc:ftiq3xvsjhpgzs2hn6w3rstt
https://paintrfiend.tumblr.com
https://paintrfiendnsfw.tumblr.com