Maybe this is too philosophical now, but I have made the experience that most of the "landscapes" you can generate in the computer are reality somewhere. I have already designed the "most impossible" sceneries for my Space Art pictures and yet later I had to realize that these landscapes exist in a similar way. Maybe it is related to the fact that the algorithms that calculate these landscapes in such programs are somehow universal. A lot of things have to do with fractals and chaos theory in some way, and the results may be "random", but still have a "predictable" background. So perhaps the phrase "too computer-generated" does not even exist... Even "flying rocks" like in Avatar could exist somewhere.