I find her pretty overall, but never thought her face was something enviable.
Nott too surprised Yoona is the only Korean on the list. She kind of has a face that's pretty anywhere.
Personally I like Ayu's face a lot, though I think she probably had some work done herself here and there.
Out of the top 3, I do like Keiko's the most. I can see why Mai is number 1. Her face is kind of cute and charming, but still seems mature.
Ishihara Satomi should be on the list somewhere.