Wow. Really good use of the medium, especially the forced narrative corridors.
I have a small nitpick regarding the gameplay:
Moving by clicking around with a follow camera meant that I kept holding down left click to keep moving, but that also meant that when a dialogue came up, half the time I would dismiss it without reading it because I didn't stop holding left click in time. It should be an easy fix to cancel/ignore the input when dialogue appears.
Btw the credits really took me by surprise and the song was just perfect to complete the story and the emotional journey, it just fit so well.