The black and tan pup could be German Shepherd/Doberman cross. It could also be German Shepherd/Collie cross or even some form of Dachshund, though I'm not seeing Dachshund in it. If it is crossed with German Shepherd, those ears should perk up by the time it is sixth months old, maybe sooner. Keisha's ears were different though, because they became erect about four weeks of age.
The breeds mentioned are only guesses though, because your pup is still a pup. Most mixed breeds cannot be identified until they are about six months old to a year.
Regardless the breed mix, the pup is really adorable. And so is the other one which looks like a Shepherd/Collie mix. They look like siblings though, so it makes me ponder if perhaps the two have separate fathers.. Time will definitely tell though. They're both adorable/beautiful. Enjoy raising them.