Great stuff! I like the "monk humming" (I'm not sure what the correct term is) throughout a lot of the song. And it's great how the drums speed up with lots of double bass pedal at 1:13. It's a very dynamic and melodic song with a sense of evil rising.
I love the solo stuff the organ is doing throughout the song. The only thing I can find to complain about is that I'm not much into the solo groove at the following places in the song:
1:43 to 1:49
2:43 to 2:49
2:55 to 3:01
To me, it just seems a bit out of place with the rest of the song. I know Dream Theater inspires a lot of your work. I love Dream Theater too, but I have the same problem with a lot of their songs where the solo/melody just changes to something that to me seems a bit weird and stands out for attention drawing away from the rest of the song. But that's just my view, and I know there are a lot of Dream Theater fans out there, so sorry for nitpicking.
Awesome song, I love it! :D