Interesting color result. You could have frosties (sometimes called brown eyed whites) but I would bet more on sable points. With a black doe the odds for sable points are there but you have weird luck to get an entire litter of them. The rew makes it more difficult to determine what you can get. With a black you should get some blacks or chestnuts or both (depends if the rew is self or agouti). That's the only for certain just from the parents' colors. If they threw sable points you should get torts, reds, or both (again depends on the rew). Then to make a sable point your black carries a sable gene.