I loved the sound design used for this movie because the music used is perfectly suitable for the soundtrack of a horror movie.
The drawings were a bit crude for my own personal tastes but we all gotta start somewhere.
I got a sense of danger from the combined visuals and sound.
I noticed that you used a lot of motion tweens and shape tweens.
Try mixing in a little bit more frame by frame animation in future movies as well.
You show a lot of potential so far.
Make more movies and upload.