Jessica Today i would like to write about our only Ice Princess, Jessica Jung ^^
1.First of all is the link... They still look a like even not that much because in my opinion most of the siblings will have the quite similar face < maybe in structure of features >, but i have to admit that Krystal looks a like Yoona more.
2.This one is the hottest look alike link They look similar especially when they have the same pose 또는 hairstyles. For me, it is maybe because of they face structures and some of the features like lips <very similar~small lips>...