Imgur user fireryone shared the following “The Art of FFOart” gallery.
I’m unsure if they’re the artist, but doing some research it looks as if its origins are from a Moscow-based artist known as ‘FFO’. Juxtapoz explains that this anonymous artist combines textbook science imagery with an Art Nouveau style with to achieve a strangely romantic look at the human form.
Here’s the official FFO art gallery website.
Image source: FFO. See above link. Thanks to Matthew for the tip.

