I haven’t come across these images before, but I suspect we know who this is…
Yes. That’s Pencils11 / Germ
Yes, I have pulled a few images from this Flickr page, along with his site from the Wayback Machine.
If I remember correctly, he passed away in December 2018.
He stopped selling/showing pencils some years ago, but continued to sell different things at ebay. So I thought he was just fed up with collecting pencils and did not follow his account anymore.