Ball-point pen on paper illustrations by Shohei Otomo…
It’s been a while since I last looked at this stuff and made (then promptly lost) the mental note about posting it here, so big thanks to the good people over at the Nice Produce blog for posting it there and jogging my memory.
You can see more of Shohei’s work on his site… here.
Interesting stuff to look at on his blog too, probably a lot more interesting if you can read Japanese though.