Hey Daniel,
Thank you for your feedback. Yes, playing a dark atmospheric horror game during the day while you can see the reflection of yourself on the screen definitely won't be of much help in finding anything. For the next update I will look at adding a brightness slider to the settings menu and, hopefully, this will help you find your way in the dark sections of the game.
I decided to add puzzles to the game to mix it up a bit and make it a bit more interesting for the player, kind of like a Resident Evil-style game. I don't want to give too much away, but every time you pick up a new key, something changes.
I'm really happy to hear you enjoyed the story and the game ran well. Yes, this game was in development for 15 months, working on it every day. Also, if you decide to play the game in the future, it will be saved on the last scene you were playing.
Thank you so much for playing, and hopefully you will have a much more enjoyable experience in a future update. Have a great day :)