Cool stuff! You create a good atmosphere with these, but I'm not a huge fan of the drums. They're a bit loud and very bassy, and it takes a bit away from the dark and creepy atmosphere the rest of your instruments do very well at making.
I also do agree with some of the previous commenters that it feels a little stagnant. Really it's up to you with stylistic choices, but I think it could have benefitted from some quieter moments and some more intense ones. Even changing up a drum pattern is a good way of accomplishing this - you're 003 track does this quite nicely, and I would've liked to hear more of that.
Again, good work!