Epic Battle Music!!!
I can see what your saying about it being destroyer of worlds, but i only get the picture because your telling me of it. If you want your song to really emphasise such, you need to use your dynamics in a way that would show such. Your song needs to go somewhere. So I'd start off at a piano or Metsopiano. Crescendo towards a fortissimo, and I love your fade at the end showing that he is leaving. Great Job. Keep it up!