Very cool idea! You captured the dream-like vibes perfectly. It took a bit, but once the puzzles started to click, it made sense! I have no concrete suggestions, but something about the way things were communicated was tricky to grasp even after catching on to what's happening. You did a really great job with changing the music with different states of character--maybe those types of hints could be expanded to the different "worlds" as it was easy to feel out of control.
Those are just nitpicks, however, and feeling a bit lost suits the overall vibe. This is a unique and well done entry--great job!!