Attractiveness is such a subjective trait, though, isn't it? Except for very specific traits which signal better mating partners than others, the idea of "pretty" and "cute" is completely cultural. So more or less homogenous gene pools would really mean very little.
See I don't agree. I think there are certain traits that are classically more attractive. Like larger more far set eyes, as opposed to small eyes set closer together. A smaller nose, as opposed to a large nose, and also fuller, red lips are more attractive. I've watched those shows on Discovery where they scan thousands of images to come up with the most beatuful traits. Also having a symmetrical face is found to be more attractive. And like you said the signs of high fertility, which would be a waist to hip ratio of 0.7 or smaller.
I definitely agree across extremely different cultures, that idea of beautiful will vary. However, I think that the British culture and the American culture think very much alike when it comes to the defnition of beautiful. Hence our celebrity cultures intertwined. American celebrities are always in the British news and visa versa with Jude Law, Sienna Miller, David Beckham, etc.
If you are talking about gene pools that have no or very little contact with other cultures or cultures very similar, say like in Africa, then yes, the subjective traits for beautiful might be different. But when the small gene pool has access through tv, internet, etc, their definition will merge with the mainstream, I think. And to be honest, I don't think there are many places in America or in Britain where people don't know who at least one celebrity from either the British or the American culture.
And now I'm off on a tangent... I have no idea where I'm going with this... random thoughts