Hi, I just bought a Yorkshire Terrier a few days ago, he's 4 months old and his name is Spunky!

He's very cute and fun, but the thing I noticed is that he doesn't look like other yorkies. He's kinda bigger, and his muzzle is more prominent than other yorkies. Also, his ears are still not erect
Someone mentioned he may be a Sily terrier, or just a mixed yorkie. I don't know what to think really.
Anyway, he also has a weird dandruff since yesterday, which at first I thought might have something to do with new hair growing?