Oh man. Very nice!
Beginning really sets the tone for epic-ness and emotion. Could be cinematic.
Guitars in the second part turn it into a different song, different feeling, heightened tension.
Third part has good feeling. Flute is plaintive and mournful, with just a taste of hope and beckoning.
Fourth part with guitars reminds me of I Made a Game With Zombies In It. The feeling I guess.
Fifth part could be creepy at night. Is something under the bed or in the closet?