They're both Yorkie's. They're just not Show Quality that's all. If it's over 7lb or under 4lb than it's not standard to AKC. You probably bought it as a Pet from a breeder who sold it to you as a Pet Quality and not as a Show Quality. Don't get discourage, just love them for their great personality.
If in doubt, you can always get a DNA test. If you bought this from a backyard breeder then there could be possibility. IMO, they both look Yorkie.
People always tell me my Lola doesn't look like a Yorkie because she's very Platinum color with a bit of Tan on her face and legs. I laugh and said, you'd obvious never seen all the type of Yorkie colors. Parti/Gold/Chocolate/etc... They come in all different flavor.