Cool little Story with the limited amount of Assets.
Some little things:
- Significantly reduce size by reducing Texture size.
- Make Text timed, instead of Triggers.
- Maybe block Player from going into the Darkness, to avoid Players getting lost, or make an ending that fulfills the warning and after a certain amount of time, he falls victim to the darkness.
also: pixabay and freesound are great resources for freely usable music/sounds :)