I don't think Pretty is in the eye of the beholder. I think it's everywhere else.
I no longer think we have a predisposition to any certain kind of Pretty. I think we train ourselves to find it in certain places.
For instance, say you woke up one morning, opened your cupboard and found a cookie. And it's really super tasty. You open another cupboard and find another cookie. If you wanted to find a third cookie, where would you look? In the oven? NO. We don't need to go looking weird places like that for cookies! Cookies live in cupboards!
But there are only so many cupboards, and cookies are so good. So you go looking in places that look like cupboards; cabinets and armories. Pretty soon, you've got a constant flow of cookies from every piece of hinged wooden furniture in the house. But only that. You're little sister gets her cookies from under mattresses and squishy cloth things, how stupid is that? Right... ?
THERE ARE COOKIES EVERYWHERE! EAT THEM ALL!