You made a massive 2-floored level, lots of decorative sprites, multiple enemy types, an inventory with a crafting system, puzzles, multiple weapons, secrets and even a boss fight? This is really impressive! This game is a very cool survival horror with creative puzzles, I got nostalgic Silent Hill vibes while playing.
Small remarks I can make are that I had to do a lot of boring backtracking in this game, which is could have easily been fixed by adding a few shortcuts. Another thing is that you can shoot through walls, and that made the enemies a lot less threatening. EDIT : Oh yeah, and the game file is extremely heavy. Half a gigabyte? I don't understand where the size comes from. Please consider at least compressing your files.
But overall, this was premium quality, and I had a huge thrill against the boss fight when I was out of ammo and I scrambled in my inventory to drink that dangerous-looking purple potion and savagely hacked the monster to death with my axe! That was damn fun!
(too bad I didn't find the shotgun, I would have used it to find and kill that guy who plays the creepy didgeridoo !)