Does my new pup look like an Akita/Shepherd?

Well I don't know what kind of dog he looks like, although he definately has some shepherd in him. But I can answer your question about the purplish black spots. Those spots don't indicate the presence of chow or sharpei blood by themselves. In fact many purebred dogs, with long standing doented lines, have black spots on their tongues or entirely black tongues and they may be golden retrievers or pugs or any other type of dog. Take, for example, my mixed breed dog. We know exactly what she is, she's an american bulldog/australian cattle dog mix. She has black spots on her tongue along with all of her littermates and there is no chow or sharpei in her at all.