The narration definitely need subtitles or clearer voice.
I definitely liked the game, overall. I think the resemblance with "Portal" and "The Stanley Parable" gave it more polish look and feel, but the execution fell flat, personally for me.
The atmosphere and mechanics were great, the rest needs more work. Yet, as the game jam project - solid work.
Your game starts at 5:37. Cheers 👌