Image used for 303 is surely the one that should be used for 207 #139
Description
The image is of the Schrödinger's cat thought-experiment, wherein the cat is alive and dead at the same time (sort of) - i.e. it is multi-status, aka HTTP 207. HTTP 303 on the other hand is a type of redirect, to which Schrödinger's cat does not have any obvious relevance.