The raw sexuality of a woman is a big turn on. I certainly prefer it over make up and fake hair etc. Perhaps its a survival technique the women that looks more natural thus are able to produced children as oppose those who looks pale and sickly some thing hardwired in our brains long ago. This is how we learn to survive so the more natural the women looks the more appealing she is. It takes us to our primordial era where sexuality was not just pleasure seeking but a way of survival for our ancestors. (By the way i don't believe in evolution im just saying this is how it might be that God intended it this way.) Chicks without make are "Super Hot" And again in Quran "Those women who change the creation of God are a disgrace) ie by putting fake hair and make up.
i think you're right about why people might prefer the natural look. but i don't think putting makeup on is changing the creation of God.