What does Goya focus on when describing Maha's nakedness?

When Goya depicts her nakedness, the key point is to show the charm of her body as much as possible. He uses subtle color changes to reproduce the luster of elastic skin, reddish nipples on white breasts and hazel pubic hair. Compared with the idealized, elegant and detached naked women in Angel's works, the naked women in Goya's works are obviously more real, concrete and credible.