i think it gets repetitive mainly because the composing could be much better, also, more than one instrument (not including the percussion) i think is needed
although there was another it was drowned until 2:42
Percussion was simple, that's all it need to be.
The melody though, i think needs a change, i was always expecting. it to go low, how ever it just lengthened which was a nice touch but didn't sound
all in all Work on your melody
You did an incredible build up though, but once it gets to that point you should have added more sounds and remastered the melody