Going by the last pic. Head shape makes me think dutch but color/body shape is wrong so there could be some in there somewhere. lop and dwarf breeds have that sort of look too. I would wager you have some mix breeds, I could be wrong of course. If I was going to guess a pure breed I'm going to say look up American max weight is 12 lb I think. Its really hard to tell from just a few pics rabbits can look really different from different angles and in person for that matter. Without a pedigree its a real guessing game for most of us, unless someone is very familiar with that particular breed, or it has extremely recognizable traits..lop ears, color, and so on, or you get someone who is an expert long time breeder, shower, judge, or scholar. If not its a bit of a wild card for most. Just my opinion, someone could post right after me and make everything I just said irrelevant too. Good luck which ever way, and enjoy your rabbits, I'm sure they are glad they didn't get left there.