Below is Kuniyoshi’s Ariōmaru Kills a Giant Octopus, circa 1833-1835. In Japanese medieval military chronicles Ariō was a servant of Priest Shunkan who gave particularly loyal service during Shunkan’s banishment and death on Kikai island. The inscription in the top right of the picture tells how Ariō killed a giant octopus during his journey to Kikai island to join his master.
Here is the 2nd sitting on an ongoing back piece representing the woodblock
I put this original design on a customer , the text was the idea that the image gave him, I tried to make an anatomical type drawing having an idea the nerves and muscles are turned to circuits and the brain stem is sparking agitating the bubbles