okay... hold here... there's hair hanging on the cage. the rabbit looks healthy. the cage could use a burn off for the hair, but overall that's not a horrid cage. No poop build up. Water bottle is dark which MIGHT be algae (won't hurt a rabbit) but also might be discolouration due to how the bottle gets cleaned (been there, had that). But the rabbit looks good and is actually housed in a large cage for it's size.
Many pet people don't cut nails so don't rag on the previous owner for not doing so. It's part of caring for critters that many people fall behind on.... seeing as I've read more than one post on this forum from people who can't cut their own bunny nails. (and do we rag on them for that? no.. we strongly encourage them to do so but we don't rag on them).
The previous owner rescued a bun from a first grade class. Fed and housed them like livestock...which yes... rabbits are multi-purpose animal...they can be livestock AND they can be pets. both. Sometimes exclusionary, but often times dual purpose, pets as well as stock. Caring for an animal as livestock does not mean lack of care.
Both were in excellent health yes?
Is that not in the end what really matters?
I've rescued buns that had a lovely hutch/cage, clean bottles etc.. that came to me as skin and bone because the MOST important part of taking care of the bun was neglected...adequate feed.
These two rabbits were fed, housed, clean, and relatively healthy. They appear to have had large cages for their size. The one appears to be an oversized dwarf hotot (though could be a blanc d'hotot though they are quite rare). The other is possibly a mutt...but I've seen folks call rabbits all sorts of things such as a "Rare Alaskan Rex" cause that's what THEY were told it was. So don't rag on the previous owner for not knowing.
I am glad that you are working to provide these rabbits a pet type home. But please don't rag on people for housing and caring for animal in a way that is unfamiliar to yourself. There is more than one way to care for rabbits...and these rabbits WERE cared for, but their surrounding perhaps were not. THAT is what is at fault here.