I think it is imagination. It is like seeing a movie packed with special effects but no story line and you sit there and get weally weally bored.
I always see very realistic drawings, which I love, but if you noticed on CG gallery
http://forums.cgsociety.org/forumdisplay.php?f=121
those drawings do not get much comments, cause its been there done that kind of thing, sure it is great to showoff how well you can mimic realism but as far as creativity goes it is zilch.
I love to do realistic drawings too but I think this guy is weally weallly great with his crazy mind, maybe he is drinking something crazy.
Look at Simpson's cartoon the technicality of it is not that great but it is very popular because of the humor.
