Very nice... while I would go darker in some places, it is VERY easy to tell now that these are different levels. One question... the exclusionary path, does it come out UNDER the ledge or at the same height? Since it is darker in color, it appears that it goes under the ledge and that the exit is down in the dark area below the ledge. If that is not the case, I would suggest making the path the same color as your main floors.