Picasso's inspiration? Ancient Greek bronze smashed by Christian zealots, much like the Taliban and the Buddha statues.
Aphrodite, hiding her shame and beating off animal-nature Pan with her shoe, with assistance from Eros. You don't have to be a Jungian analyst to see the archetypal roots of Protestant American bourgeois sensibilities in Greek statuary.
An observation: The ideal male physique of the ancient Greeks is not terribly different than our modern notion of the ideal. Daniel Craig could pose for a statue of Poseidon or Zeus. Very different though for the female archetype. Aphrodite is downright soft. All around Athens we saw advertisements for a brand of women's clothing, Mango. Check out their twiggy model.