each of the animals resembles another character from the show; the monkey at the ground is clearly Shinji's father.

This is fine art parody of The Garden of Eden with the Fall of Man by Jan Brueghel the Elder and Pieter Paul Rubens. At least, it's the left half of the original.

Lmao, in the bottom left part of the image Zeruel be lookin' like a kiwi bird. 10/10