These pictures are outstanding. It's sad that Quoom's email no longer works. I attempted to contact him back in January but my email went unanswered. I even wrote the customer service department at Quoom.com back in May but they told me that because of General Data Protection Regulations (GDPR) they were unable to give me any personal information but confirmed he was no longer creating new images for the site.
I remember how happy he was back in 2019 when I wrote to him and informed him he had been voted into the GIMP Hall of Fame. These previously unreleased illustrations are further proof of his amazing talent, confirmation that he is (or was) one of the truly great GIMP artists of his era.
Pure guesswork on my part, but judging from how sudden he became inactive, I'm thinking he possibly had a stroke or something similar. Whatever the case, I truly wish him well and as much recovery as possible. He is truly missed.