The beat is catchy, but the deep rumbling that carries on throughout the entire track is something that would have a lot more impact if it came in later or was simply used more sparingly. Even though there's only a minute's worth of music, it quickly becomes overwhelming. The listener at least needs a break from that sort of thing from time to time, and that would also serve to make it a more dramatic effect. Bringing it in and building it up slowly from the start could also work quite well.
The string-like instrument you bring in around he halfway point (00:34) doesn't really seem to fit the overall vibe to me, but the real problem is that some of the notes are out of tune and simply don't match what's going on in the background. Also, and it may just be that there's a particularly slow attack on each note, but whatever it is that's causing it, the timing sounds off.