Head from the figure of a woman(Shanqiao Liang)

This is called "Head from the figure of a woman", ca. 2700–2500 b.c.; Early Cycladic I–II. Cycladic; Keros-Syros culture, and we can see there is no show the woman's face, and I think it is very interesting because ancient people already used their imagination to made the abstract. In term of the reason why the no with her face, I am guessing the people wanted to show what is the perfect shape of women's face.(Shanqiao Liang)