@Goatrider: I looooove the concept! And holy crap that map is made of pretty. The only thing is that the mushrooms clash with the style of the rest of the map. They should be more realistic to fit better - still huge, but less cartoony. If you were going for clashing to emphasize the weirdness of the dimension, well...To me, it doesn't look intentional, because everything else matches. It just looks like you couldn't find the right sprite. So if it WAS intentional, make a few other things not match as well. Maybe add some weird trees or something.
Also, HHNNNNNGGGH YOUR FOG.
Is this (the whole map, not just the fog) a parallax? It's got to be a parallax. Please tell me it is. If not, and this was done in the editor, I may have to kill myself.