Amiga Format picture of the month - August 1991.
Judging from the color palette and the hue shift in the gradient it is very probable that this image was automatically reduced to 32 colors.
Also note the attempt to dither the color banding rings in the center of the image. Looks like someone tried to optimize the image, but ran out of time before it was submitted to Amiga Format.
Amiga Format picture of the month july 1991
Used in the "Amiga Dealer" demo. It was produced by Commodore to promote Amigas that were on display in shops.
This image was shown in the "Amiga Features" part.
