Because she's not a 'standard' blue and tan Yorkie, I would personally have no idea what color she'd end up being as an adult!
Maybe some others who own non-standard Yorkies can assist?
I have some baby pics under my profile of my Teddy and, as you can see, he looked vastly different as a baby as far as coloring. At 15 months of age, his face has turned from black, to gray and gold and his body has turned from pure black to black and silver.
Hopefully, someone can give you some guidance. Welcome to YT