Her markings aren't correct, and won't be into maturity most likely. Things will change quite a bit, but if I were to guess, you Yorkie is just going to have a wavy coat in some areas and a slight curl in others.
Were you planning on showing in conformation? It doesn't sound like so since you aren't confident in the breeder selling you a purebred pup let alone something capable to go in the ring or be bred.
I wouldn't worry about it personally. I think she's all Yorkie and she's cute as hell.
Give her a treat from a YT member, will ya?
(Oh, and silky coats do not always come in straight at maturity, no......god I wish.)