Its hard to tell, but my brother in law has a shepherd collie mix that looks just like Greta. He is smaller, thinner, and has floppy folded over ears, but coloring of GSD. Cute puppy and congrats
Do you have more pictures? she can be full blooded with "soft ears" from poor breeding, but don't let any of that scare you I am sure she is and will be an amazing dog.