I was amazed from your game even before playing by myself (I've seen it on Mark's stream). I've started learning Unity recently too (4 months ago), so I'm impressed with what you've achieved in such a short period... Probably, I need to work more :D It's motivating
Considering the time restrictions and your experience, I'm convinced that the game's execution is solid, original and well polished. The time travel stuff is the hardest to work with, but it's my favorite one, and you did a great job of doing the game around the time. Just let me tell you to keep up making games, because you're already doing an amazing job with them, I loved it :)