For a first game project, this was definitely not as bad as you described it yourself! The custom-made art looked great, and together with the music and sound effects, it created a nice creepy atmosphere that fit well with the game and story. It was fun to play for me at least.
You also used multiple techniques, like the flashlight mechanic, light and darkness, and even weather effects, which added to the experience. So, a very solid effort for a first attempt. Next attempts will only get better and you hopefully learned a lot also during this project to make the next one even more fun. I understand you had a lot of ideas you wanted into the game, but time management is always difficult in a short game jam. Believe me, I know 😊!
The theme was incorporated, and the color palette… check.
So overall a nice entry! Keep up the great work in your future games! 😊