I can't say anything about pictures with women, maybe 'women's health'. Possibly attributes of the grafted plant with health benefits.
Possible authors include Roger Bacon, Elizabethan astrologer/alchemist John Dee, or even Voynich himself, possibly as a hoax.
It is considered a Manuscript codex and dates to the early 15th century (1404-1438), possibly created in northern Italy. It's currently kept at Yale University's Beinecke Library of rare books and manuscripts. The Voynich Manuscript has been dubbed 'The Most Mysterious Manuscript in the World'. Along with the strange handwriting in an unknown language or code, the book is heavily illustrated with bizarre pictures of alien plants, naked women, strange objects, and zodiac symbols. What is this mysterious manuscript that has everyone so excited? It's a 15th century medieval handwritten text dated between 14, purchased in 1912 by a Polish book dealer and antiquarian named Wilfrid M. Theories range from a secret language or code to an old sort of joke or hoax. The Voynich Manuscript is a document MS-408 that is notable for its strange text, that to date hasn't been decyphered.