I got him (Or her, we never checked) quite some time ago from a breeder (There where 4 for sale, we got 2 of them, however saddly had to get rid of one for space reasons.). We never did identify the breed, though we think Lionhead.
Last one is of the other bun.:bunnydance:
Assuming it isn't neutered, it should be easy to check the sex. A male should be visible testicles and a female will not. Since lionheads can be quite fluffy, you may have to look around a bit to be sure.