Certainly, the best way to browse these days is on Flickr I think:

https://www.flickr.com/photos/57934548@N02/

There's also this old blogger blog where I waffle-on about them:

https://ultraiterator.blogspot.com/

And here's one example of a 16k rendering:

https://drive.google.com/file/d/1g1B6pVennldNsswyiiA2qOsy2Nv...

If anyone wants to do a print of any of these, definitely let me know (email on profile)! I will be happy to do a 16k render too if I haven't done the one you like at 16k yet!