Answered
AbamboCorrect answer
Community Expert
December 23, 2024
Simple answer: because they are full of errors and artefacts. And the errors are easy to spot:


The nearly photorealistic foreground and the more abstract background looks like a nice idea, but neither has an error-free rendering.

1) compression artefacts
2) blur
3) geometry issues
In addition: the whiskers show aliasing, the eyes are poorly rendered etc.
ABAMBO | Hard- and Software Engineer | Photographer
