Botticelli's Venus resembles Venus Pudica's (Modest Venus) posture, a Classical sculpture. Botticelli copied the way the Venus Pudica holds and covers her breast and genital area with her arms and also the way her feet are placed. Botticelli's Venus stares away dreamily and shyly into the distance. The only difference from the two is the golden knee-long hair of Botticelli's Venus.
Book: de Rynck, P., 2004. How To Read A Painting. Decoding, Understanding and Enjoying the Old Masters. First Edition ed. London, United Kingdom: Thames and Hudson.
Google Art Project, (2012), The Birth of Venus [ONLINE]. Available at: https://upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Sandro_Botticelli_-_La_nascita_di_Venere_-_Google_Art_Project_-_edited.jpg/800px-Sandro_Botticelli_-_La_nascita_di_Venere_-_Google_Art_Project_-_edited.jpg [Accessed 23 March 2017].
ItalianRenaissance.org, (2015), Comparison of the Capitoline Venus (after the Aphrodite of Cnidos) with Venus from Botticelli’s “Birth of Venus”. [ONLINE]. Available at: http://www.italianrenaissance.org/wp-content/uploads/2012/08/Botticelli-Birth-of-Venus-Pudica.png [Accessed 23 March 2017].