Lovely feedback, I am glad you enjoyed it! I plan to do a nice update after the game jam is over, polishing off a few things as suggested. Depending on other factors, I may want to develop this further into a fully realized game, but I am not sure yet. In any case I appreciate you sharing your play-throughs. That is super helpful to me as a developer.
I think I would have, and could have ... and for that matter SHOULD have changed the exit door graphic to an open door with light pouring in. That would have made it clear enough to players that they'd reached the exit. That will be the first change I make, but I can't update the game during the game jam so it will have to wait :)