Shine you are not bastardizing anything. I think it's a good way to sum it up.
On the other hand, it's tricky to talk about absolute tenets of female beauty regardless of culture. What I think does apply is that we might after all share some specific hardwired abilities to quickly discard mating with people with evident genetic flaws. And some of them are not so evident.
Humans seem to prefer some body odors over others in their potential mates. And these odors are affected by many different metabolic variables that could indicate some not so obvious genetic or health issues.
As I mentioned before, it would make sense to have evolved to be really good at telling normal genes from very bad ones easily by following phenotypical cues. Culture would very likely change the access we have to these cues, or how we interpret these cues.
"Animal attraction" towards, let's say, a recent acquaintance (I think we have all experienced it in one way or another), would be intimately and strongly rooted, I believe, in genetic + potential for paternal or maternal investment.
It's no coincidence women will be very attracted to handsome healthy successful men; and that men will prefer beautiful, young, healthy women, regardless of culture.
The perception of handsome, successful and beautiful will vary form culture to culture, yes. But I think that in the vast majority of the cases, they will show clear links to genetic health, good potential for good parental investment, and good equipment to create babies. And that is, believe, a very useful pattern to make sense of present gender dynamics.