Celebrity in Question : https://en.wikipedia.org/wiki/IU_(entertainer)

Potential Words -

Nitid - Bright; lustrous; shining.

https://en.wiktionary.org/w/index.php?title=nitid&oldid=89791634

Pulchritudinous - Having great physical beauty.

https://en.wiktionary.org/wiki/pulchritudinous

Venust - beautiful; having an attractive appearance

https://en.wiktionary.org/wiki/venust

Neanimorphic - Appearing younger than one's actual age.

https://en.wiktionary.org/wiki/neanimorphic

Ehhh Potentials -

demure, fine-featured

We could look for vocabulary words to describe the eyebrows, the eyes, nose, baby hairs, etc. nothing is top of mind for me right now though.