Well, it looks like Nexus is still adding new pics (every now and then).
http://expansionmansion.com/gallery/NexusT
There are a few new pics under "Furballs" - I'd seen the first 3 monica cow pics in a zip file he sent me last year (don't think they were ever up on his site...could be wrong) - but the next 2 look totally new to me -- helps that the folders show update dates too.
Hopefully more in the future.