your maps aren't bad, but i would suggest making them using separate objects placed down. rather then have the building built off the ground have it set on the ground or slightly into it. the reason i say this is because say you want to have a railing and you want to limb over it. to do this it would need to be a separate object well if it was built off of the ground you would be able to jump over the entire map that you made because it would recognize the railing the same as the walls or floor. also if you want windows breakable or doors open able or walls leaned against these things all need to be separate, but then again this isn't required it is also easier to make a map using separate objects.(you can get by without doing it this way but it would be harder on the coder) but your maps do look quite good.
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