The only thing that didn't fit well was the guys... that didn't make sense to me to put them there, I really felt like it actually hurt the validity of the map. Other than that, amazing!
As for everyone who's saying about game ripoffs - in most cases, things like the mario ones and whatnot go out of there way to be exactly like the original game. In this case, what he was more trying to recreate the atmosphere and style which is one that is very counter to LBP's style. That, to me, is interesting and unique and shows what the tools of the game can accomplish. He also didn't copy the actual game very much at all, just the ideas and the set pieces. It's kind of like fan fiction: I really like this idea, but lets try it in a different perspective. Not a direct copy.