This map is based on Big Boo's Haunt from Super Mario 64 but with changes/improvements all over the place (for instance, you can actually see through all the windows, which you couldn't in Super Mario 64). This map uses TROR heavily (including TROR scissoring in multiple places) so keep that in mind when deciding which renderer to use. (I honestly didn't expect to have this map finished this quickly; it leaves me wondering if maybe I've missed something.)
Congrats on release, I recognize all the places from the screenshots but the last one in particular is pretty damn sick and also to me looks like a very impressive TROR planning feat.
I'm not familiar with the original, but gotta agree with ck3D that the building from the last screenshot looks damn impressive, it even has a sloped window in the roof, not to mention the epic balcony!