But I know the level objective is more important than putting well placed terrains that will catch people's eyes and say it's a pretty looking level.
I'm surprised you stand by that, I would've kinda guess that with something like PSP, the online community would place more emphasis on eye-catching levels than hard/interesting level objectives, but what do I know about the PSP Lemmings community?
I can somewhat appreciate this though, the fact is I find it extremely difficult to create really good-looking levels. I don't think that many people actually has the right combination of left-brain
and right-brain skills to make levels that are both challenging and looks stunning. I do think though that most people are competent enough to at least not make their level look like a total eyesore, but beyond that, I can sympathize. People are only going to make their levels up to the point of their mental capabilities in terms of puzzle and visuals; once they hit their natural mental limits at it, to shoot for anything significantly beyond will likely tax their brain too much, and then the whole level creation thing becomes an unfun and discouraging chore.