Stage 1 - IDK so I guess pretty meadows (entire stage)
Fits Nwbi and Jan, good.
Stage 2 - IDK too, so I guess pretty meadows leading to a mountain (entire stage)
I suppose "rising to heaven" can mean a mountain too, if that's what Rou was going for. Might have to factor in the magicalness of the theme.
Stage 3 - Mountain (stage portion), Temple front (boss)
I'm not sure if an actual mountain fits a stage 3. Maybe something like MoF stage 3.
Stage 4 - Temple 1F (stage portion and mid-boss), Temple 2F (boss)
My visualization of "temple" doesn't really fit I'M A PIRATE PEW PEW but if someone has any ideas in regards to exactly what it'll look like, then...
Stage 5 - Temple 3F (entire stage)
I sense amazing. SA Stage 4 + A-F style, maybe?
Stage Final - Inner Temple (damn, this thing must be pretty big) (entire stage)
derp no clue
EX and PH seems to be still being thought upon. I don't really have any ideas, either. Having PH in the Lecture Room could prove to be pretty otherworldly, though.
I also have an idea for some of Stage 6's theme. A music box starts up, it gradually gets slower and out of tune as a grandfather clock starts ticking louder and louder, then it chimes (bells). The music starts playing and the clock chimes eleven more times until the boss is reached, then it cuts to silence while the dialogue runs through.