My original tumblr post was here. This extraordinary image set comes to us via ircaveman71 and was originally posted by David Hine, who gives us also this explanatory text:

Amazing illustrations by Tatsuyuki Tanaka. I came across his work in a book called Cannabis Works. All I know about him is that he has worked in animation – notably Akira. There doesn’t seem to be much of his art out there besides Cannabis Works and even that seems to be out of print. I would love to see more of his work if anyone has any links.