Interesting setup, I think I like the artsy angles and ending more than the actual gameplay.REALLY like the opening TV/VHS screen menu!
I feel that knowing the puzzles and zipping through on the second play (if you don't survive the first) diminishes the overall feeling and vibe of the game. Perhaps if there were multiple rooms of puzzles where you are intended to die the first time you get through (unless you're smart/fast) would make the game feel a little more impactful/exciting even if you have to replay through the puzzles. To that end, it would remove the tedium that comes with having to do things in sequential order even though you already know the answer. It's a reward for having played and died but knowing the answers, then. Dopamine!