Gonna actually post all my opinions now:
Hergiswi: I've spent too long trying to work out your puzzle.
EnnomFennom: For some reason, the candles and arch bother me because they're so large. I think that's a personal preference, though, and if there were a justiication for that in a quest, I'd be fine with it.. The tree doesn't appear to quite fit, either, though I like the drawing you linked to. Just doesn't quite fit in ZC.
Shoshon the Elegant: I do rather like this. My only minor issues are the stairs/ladder and upper waterfall, as Shane and Eddy mentioned. The npcs and enemies also don't stand out completely from the ground in this still image, but I think that it's probably fine in-game.
klop422: best screen, vote here
Dimentio: I really want to play this dungeon, because it has minecarts and poison water and perspective issues. In all seriousness, the perspective looks fine, though I'm not exactly sure whether the ground is supposed to be on the level of the water or a bit above. I'm probably overthinking perspective at this point, though.
Nulled, of course, but would probably have voted Shoshon or Dimentio (since my own screen wouldn't be here if I wasn't nulling).