MY guest is a German Shepherd mix. Having many GSD puppies in my life, they all are born almost black with a touch od tan, reddish brown, or silver on their toes and some over their eyes and chin. As they age their colors spread to what we know GSD to be. The steep stop (the area from the top of the forehead to the flat of the nose - the bridge of the nose) - makes me think, from the picture it might be a bit of Border Collie or Aussie. But I primarily see GSD with the ears attempting to stand I would not consider Rottie or Dobie , which I raised Rotties and Dobies also from pups. Whatever it maybe it's a cutie.