This has a cool beat, nice work! I like the variation you tried to put with both the melody and the percussion. Also the time change at 1:48 was really creative! It completely shifted the emotion/mood/and anticipation of the song out of nowhere. You seem to like using these shifts as just later there's another shift back to the normal time. One thing I suggest is more harmony to give your song a more "full" feeling. Otherwise, it's great! Keep it up :)