Hey im not into this type of sound normally, but this is an exception, i like the lyrics aswell, its supprisingly cheerfull sounds for the lyric.

It seems complete to me, great the way it changes without loosing track of the same vibe, could probally push out something a bit wild in there, maybe a bit of epicness somewhere like a few more voices rising up doing some powerful harmony.. duno, but its great as it is.