QUOTE(Ian)
The ancients were less inhibited than us. :-)
The only shame to nakedness was that it meant that you could not afford a cloak.
(If we had to walk around naked, more people would have memberships in "sweatshops.")
As late as 150 BC,
Marcus Porcius Cato Censorius worked naked in his fields, alongside his slaves. That was recorded by Plutarch about 80 AD, and it was only an example of Cato's willingness to do hard work.
The assimilation of Jewish values through Christianity changed the Hellenic-Romanic worldview. Independent of that, of course, the barbarian invasions might have had a similar result. Coming from cold climates, the Germans wore pants. On the other hand, when the Hellenes and Latins came down into the Mediterranean basin a couple thousand years previous, they shed their clothes. So, it is difficult to predict the alternate history.
Also, Greek coins tended to portray naked gods, not goddesses, and the goddess's pudicity was never revealed, of course.
If you start with any coffee table book on Greek coins -- G. K. Jenkins's for instance -- you can then go to Coin Archives or Wildwinds and find many nudes.
(You meant, "... than we.")