The central figure is Hanuman, a Hindu god who is half man and half monkey. It was based playfully on the legend which says that Hanuman was found inside a belly of big fish.
It is also a reference about "So Long and Thanks for All the Fish" - the 4th book of the Hitchhiker's Guide to the Galaxy - written by Douglas Adams
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Left: with the lights off
Left: with the lights on.
The brightness can be controlled with a LED dial