This is a piece of art.
I have to start off by saying, I love that melody and pad, along with the drums. I truly enjoyed each guitar switch-up/solo you added into it. That really gave it a better feeling as a whole. The instruments you used in this were a joy to the ear as well.
I definitely get the creepy but epic feeling from this.
The vocals, could have possible been better. For example, I could hardly hear them or understand them the first time they showed up. Although, the second time, they sounded perfect.
I would have also tried to add a better intro and a better ending in this. You could have let it build up for about 20 to 30 seconds before putting everything into it. The ending seemed to abrupt as well, you could have spent a little more time on it.
I gotta say though, I really loved this work of art!
Thanks! I really appreciate you taking the time to listen and offer feedback. :) I've tweaked the song in some of the ways you mentioned.