If you conducted this same study in ancient Greece, would you expect the same result? If no, then cultural views of beauty play a big role in this. If yes, then why were the ancient Greeks obsessed with male nudity?

Why wouldn’t you? I’m not an expert but from skimming through a brief search they seem to adhere more or less to the same standards we do. Yeah, there’s more dudes but that can be explained by the fact that they’re sculpting heroes from mythology which are mostly men and they want to show off how buff they are. It’s like comic books of today, but unrestrained by censorship. The female statues are just as conventionally hot/naked.