[ein]

Hello,
I recently bought a yorkie puppy for my wife- she is a very energetic lovable dog named Tanny. However, i am new to yorkies and dont know much about them and ive started to notice that our yorkie doesnt really look like a lot of yorkie puppy pics on the internet. And to make matters worse, i ran across an article describing how yorkie-chiuaua mixes are being scammed as pure yorkies. I'm now not sure if ours is pure or not and its driving me crazy. Either way, we will love Tanny the same- I would just like to know. HEres some pictures- what do you think?
Thanks!