Okay, it is harder to make it look good without imports, but you think it is easy to make it look good with them? If it so easy, why isn't everyone that opens the UTM and terrains, coming up with things like MadseN does? Seriously, a good terrain takes a few hours to make, whether or not you use imports. Of course using them will make them look better, because there is a wider range, and they look more realistic, but a good terrain is about concept, doodad manipulation, execution, and effort. Not models.
Back on topic, Void, that is a very good no-import terrain, but who knows what it is lol. It is a dragon spawning grounds?