Do 당신 think 양치류, 고 사리 Laleine Bozar (Tiffany Hwang cosplayer from Philippines) looks like Tiffany?

I suppose not.

I think she does look like Tiffany, sometimes.
Maybe there are a couple distinguishable traits of their face, and probably body, but I can say she looks 더 많이 like Tiffany than others.
Nonetheless, as a girl, I can say she's a beautiful young woman whether 당신 compare her to Tiffany 또는 not.

–––But that Yoona duplicate was literally, a DUPLICATE!

Eeew NO. The YoonA one looked 더 많이 like YoonA but this one doesn't at all!