R4R stuff.

First off, things I liked:

Sound design is good in that it doesn't sound like a 2008s song.
Melodic ideas aren't bad, especially the riff at 0:28.
You have a good sense of bass. I heard a lot of low end, something a lot of songs lack.

Next, things I feel could have been better:

Your song is pretty quiet. For something like this, I feel a bit more could have been achieved.
I felt the buildup at 1:00 was cool, but the part directly after it didn't do justice to all the tension built in that moment. This is partly because your sound is so quiet.
This song could have benefited from slightly better instrumentation. I felt some sounds in here didn't quite do the melodic ideas justice. For example, I felt the chord pluck sound in the beginning could have been shorter and more staccato
More interesting things could have happened in this song. The first thing that comes to mind is the use of stereo, in that there was none. Panning is a great way to give your sound more depth.
Ultimately the sound gets dull after a while. Even after the first listen, the sounds quickly become uninteresting. This is probably a combination of all of the factors above, plus the fact that you repeated the same thing a lot.

I guess there are some pointers for you. Keep composing!