Saw you asking for a review on audio forums so here are my thoughts.

Were you going for some suspenseful theme? Its a nice idea. I think you could have chose better instruments. The lead instrument doesn't seem to be playing a lead role because I don't sense any standout melody. It sounds kinda similar to what the bass is playing...not exactly but not significantly different. Your laying of instruments just seem to be playing the same stuff too. I hope you change this up or I think the end result is going to be a very repetitive song. Perhaps more fx sounds would help too.

0:45 i'm not a fan of that instrument. Sounds somewhat ethnic and too happy considering the theme is suspenseful. I'm going to agree with gurugarama that you should make this a loop and not a song.

Overall, you got a good theme here. The composition just needs to be more variable. Get those other instruments playing something noticeably different. Put some fx sounds, make buildups, etc.. Good luck upon completing your final product.
5/5 vote and review
Bye for now

What you have is good. I think the melody is well developed. You can expand on it by adding another part, maybe a deeper bass part throughout? And then just continue it longer or make it a loop.