I don’t recall the Mandrill image ever being used in conjunction with Amiga. Jim Sachs creations like this one were more common https://www.reddit.com/r/VintagePixelArt/comments/m1fxm1/sac...
Sachs was of course also immensely popular, and did enough work that I have no doubt more Amiga users saw his pictures.
Here's a page with a lot more of his pictures[2], including the color cycling effect. (There's also a fantastic comparison far down that page of a sharp version vs. a VHS recording that shows just how much color bleed we had to deal with, and how it affected the art.
[1] https://www.atarimagazines.com/compute/issue64/amiga.php