Spellshape Monk? Cool.
Just to confirm, the extra abilities on the aspects are by CLASS level, not SHAPER level, right?
Crushing Stone: Odd that fortification should switch to this from Roaring Tide. Make sure to borrow the wording, too, so idiots like me don't take it to mean you only take 90%/70%/50% of the damage dealt by a critical hit (or, worse, take 0.1, 0.3, or 0.5 less damage from any critical hit). Also, until 7th level, is strictly inferior to Fleeting Image (10% chance to negate all of every attack vs. 10% chance to negate part of a large but rare attack).
Deteriorating Corrosion: Danger, Will Robinson! Permanent destruction of magic items and other treasure?
Devouring Shadow: Unlike all others, this one is initially useful for out of combat. All the others are only useful in combat at lower levels.
Does the fatigue stack with itself?
Glimmering Moon: Does the shaken/frightening stack with itself?
Perfect Freeze: Can you choose not to ice up the place? Freezing the ground around you every round can be a pain while with allies, for instance.
Roaring Tide: Any reason you didn't just grant Evasion/Improved Evasion, instead going with this alternate mechanic that obviates the need for saving throws?
Searing Flame: Should be fly speed equal to your land speed, not last speed. Also, the 13th level ability is kinda sucky, especially compared to Blustering Gale (strictly better), and more so since you're in an ACF that removes your ranged ability so you definitely need real flight.