The other similarity of the painting with the VMs is that both suffer from endless interpretations and opinions of its meaning (to which I continue to contribute).
Some scholars see pineapple in the picture so the date of the work is generally placed somewhere between 1492 and 1504. Bosch's St. John in the Wilderness includes similar 'flower' and is dated around 1489.
To add to the pile of speculation, I will share my believe that the "bag-pipe" in the Hell portion of the drawing may be a picture of stomach - thus representing the place where the gluttons suffer after death.
Another example from the same period is Albrecht Dürer whose works are also examined to the smallest detail and it seems that the art experts see a lot of body parts (mostly of sexual nature) in his art. Below is detail from 1496 Dürer's woodcut The Men's Bath featuring suspicious faucet and pair of apples.
For the record, I believe Albrecht Dürerhas has nothing to do with the Voynich Manuscript (his flower drawings made during his travels through the Alps are realistic and masterfully executed). Again, it is just an example of possible hidden body features in late 15th century art.