Do we want questions where the asker doesn't have a specific problem, just wants feedback on a finished image?
For example, they could ask whether their attempt at a photorealistic image has any problems that make it obviously not a photo. Or they could ask about an image that does not attempt to be photorealistic. Even a cartoon style image is accepted by the eye significantly better with consistent lighting and shadows.
If we do allow such questions, there will be no problem to describe. How much description should we require of how the image was produced and any particular aspects that the asker wants feedback on?