I refuse to believe this is your first game. Ain't no way. I was hesitant to drop $5 since I never heard of you but I don't regret my "stupid decision" one bit. It's about as short as I expected for a 'chapter one' but the amount of quality packed into that short length adds way more value to its weight, even if it is light at the moment.
Normally I can be pretty thorough on criticism but in this case, I'd have to go back and actively look for nitpicks to offer any. Very well done.