First section. Not much to say here.
This is inside spectral steeple. Pretty crazy stuff.
This is the only part completely submerged in water. There are a couple other water sections, however.
I just had to include this. Putting Porcu-Puffer in a regular level is a hillarious way to be a dick.
This is part of the top secret route that nobody will be able to get to. For whatever reason, Mario can walk through these pipes, but the tops and bottoms are still solid. They move up and down on layer 2 and are all different lengths, so you have to maneuver through them without getting crushed.
This shot is just to show the detail put into some of the level design.