Look at the beautiful face of above Korean girl, if this Korean girl's face compared to the face of two women who many people refer to as the two most beautiful women in the world, they're Aishwarya Rai and Angelina Jolie, then many people will say: "This Korean girl's face is clearly less beautiful than their face...".
But it really does not mean that this Korean girl's face is not beautiful. Why is that?, because, She has uniqueness that are inherent on her face, and these inherent uniqueness are indirectly lead to the facial characteristics of Korean people (features).
As these characteristics are the following:
1. Small eyes (slanted)
2. Thin eyebrows (sparse)
3. Small pupils
4. Non-double eyelids
5. Small nose (pug)
6. Small lips
7. Top of the forehead with round curved line
8. Yellow facial skin (looked a little pale)
9. And other main facial characteristics.
(learn more on Physical Anthropology: Faces of Koreans).
So the meaning is, the characteristics of Korean girl's face has become Distinctly Unique Aesthetic (which are mostly have small measurement), Likewise: Aussies or Australians who had green eyes, blue-eyed Greeks, Southeast Asians who had black hair, and more. All are unique.
Then a more universal standard of facial beauty is, How does the uniqueness of Korean girl's face combined proportionately between each part of its face. As simple examples: the face of Korean girl above, would be not or less beautiful, if, She has thick or big lips like the lips of Angelina Jolie, or She has big eyes like Aishwarya Rai's eyes.
So it can be said that, the Facial Beauty of Korean Girl will be visible if all features on its face has the Right Proportion. But most of all, one fundamental thing that can be seen clearly on the face of Korean girl above is that her facial skin is very smooth and clean. And actually, it is the most universal standard for a facial beauty, on whatever the ethnicity.