You can proceed through any book and critique the various bodies. Practice your analysis of anatomy, proportion, and mass, and based on those observations, determine how true to humanity the representation is. Here are a few key examples with abbreviated discussions. 





Jacopo Tintoretto’s Lead and the Swan, c.1570-5, depicts a woman favored by the gods on Mt. Olympus. Zeus (Jupiter) fell in love with her and wanted to seduce her. However, he needed to appear in an altered form, in this case a swan. He makes lover to her and in time, she gives birth to twin boys and twin girls hatched from two eggs. Leda is represented as “nude.” Her body is golden in color and soft to the touch. Her limbs are long and rounded. There are no blemishes, wrinkles or patches of discoloration that would suggest that she were real.

In Cezanne's The Large Bathers , 1898-1905, there is no biological representation of bones or muscles. Proportions are exaggerated, elongated. Mass within the bodies in absent. Bodies are reduced to abstract geometric forms. This is an ideal fashioned in the artist's imagination: Nude.