Answer: The ideal answer should include:
1. These examples of Brancusi’s sculptures represent the shift of the artist’s work from naturalism to abstraction.
2. In Sleep, Brancusi creates a naturalistic human head that resembles the Romantic sculpture of Auguste Rodin.
3. In Sleeping Muse I, Brancusi abstracted the facial features and simplified the hair into curving lines.
4. Finally, in Newborn [I], Brancusi reduces the form of the human head to its essential elements by eliminating the surface embellishments.