Production levels on this are great.
nice use of stereo field, solid percussion, big kick.
Like the big orchestra hit.
The holst sample is a little out of time, and is the later classical sample.
It all gets a little too off the beat in places.
Nice ideas in this but they don`t seem to blend together.
The initial groove and the big orchestra stabs begin to set up something epic, and clubby, and I think maybe going back and building on this would be cool, as the tune seems to get lost without direction.
Although I love the Mars God of War music, it`s too loose (timing wise) to work.
Maybe try recreating the God of War melody with something like Edirol orchestral, as you can then make it fit.