In a book entitled Dogs Never Lie About Love, written by Canadian author, Jeffrey Mason, he says
Tails as we all know are subtle and marvelous carriers of meaning, but when I acquired my present family dog I was not prepared for the complexity of a dog's ears. The expressiveness of Sasha's ears is something to behold. She can say as much with her ears as we do with our mouths.
We need to consider what is best for the dog as opposed to what we THINK looks best for our dog. Keeping the ears and tail natural will help enable your dog to have better communication skills, resulting in a healthy, more well balanced, happy dog.