This is solid - the piano in the first track is woven in such a way that makes it hard to lock on to what it's trying to convey. This kind of ambiguity can be difficult to latch onto and really make work, but I think you've done a great job with it, personally. Really feels befitting of the title.
Rottenmouth Theme feels much more explorative and experimental. Aforementioned piano is still present but instead supporting the accompaniment of airy and somewhat eerie pads. As others have mentioned - the spoken word was unexpected but actually works really well. Kudos on the ambience continuing behind it and then gradually reintroducing melody and instruments to create a rather ominous but mysterious crescendo. Great work, this was very unique!