IU (Lee Ji-eun) vs Natalie Portman

IU's facial proportions are consistently cited as near-ideal — upper, midface, and lower thirds in the golden proportion. This is her most consistently cited structural halo.

While proportionally excellent, her overall feature scale is small, which in some Western PSL frameworks rates slightly lower than larger-featured phenotypes at the same proportional quality.

Portman's facial symmetry is among the highest consistently cited in community analysis. Bilateral symmetry across all zones is near-perfect.

Her jaw narrows substantially below her cheekbones — creating a strong taper that limits the lower facial structure rating.