Neat game, it had a nice and creepy vibe. As others said, the interaction isn't intuitive, and it feels like E should also work, because clicking on the text isn't very intuitive, but also sometimes you had to click on the environment and not the text, which was confusing. Oh and I don't think you need to explain what the keys you get are for, especially the flower key, that one is rather obvious where it opens.
Thanks for your submission