I got to the “end?” but for the other endings I just am extremely sure how to reach them (found the hint in the starting room and in the big clock room it’s visible when one looks for it), but I am absolutely not a fan of the activation condition for these. Trying to be somewhat vague here to avoid spoilers for anyone else.
The game itself had a vibe similar to both Antichamber and The Stanley Parable. Like, the weirdness is the game, how things change when not looking, but there are no choices to make whatsoever, not even about the order of events, which is a big difference. Like, your game as is isn’t really a game but just a little story. But it shows you could totally expand the concept into something big.
I especially loved the door that gets smaller when you move close to it. Greetings from Lewis Carroll, I think :)