I have a 2 year old male , who is a pure bred registered yorkie, tatooted, but looking at all of the pictures of everyone else's little ones , I am wondering if he is not a silky or at least part. The reason I ask is he is a real light silver blue on his body and light tan on his face, and legs, he is long and lean, and weighs 5,5 pounds, while my female is the dark blue, on the body and is short and stalky weighing 5.5 pounds, I wish I had a camera to show you what i mean any insight to this would be helpful.