I loved the use of the Harp. I've noticed too that when I add it to music, it always enhances it to some degree. Oh, also the riff at 1:20 reminded me of Metallica's "Orion". Pretty cool stuff all around. Great combination of strings, guitar and drums. Everything was mixed very well. I felt like I was listening to XJapan in some parts. Excellent song all around, I'm definitely downloading it.
Keep up the creativity!