From what I remembered, you guys wanted to go in a pseudo The Stanley Parable route in terms of design. I think, however, you guys should go for a more 3D Zelda esque style in terms of design. The Stanley Parable wasn't a puzzle to solve: It was an experience to go through that involves shocking the player rather than testing. This game had more puzzle elements that could work better if some key aspects of Zelda exploration where taken in mind. Dungeons such as The Water Dungeon from Ocarina of Time 3D can help show you what you should and shouldn't do in terms of level design.
Also this is just a pet peeve but the main character feels way too small? I feel like they should be a bit taller.
great game! keep it up. im proud of you.