hey, I enjoy this.
it is actually very good for "just a demo". if it was your intention to get something nostalgic or adventurous out of heavy metal music, then I congratulate you, because you made it a succes.
thats a good description,
i love classical music and other music that has intense melodies,
so when i create music, its natural to make heavy metal cause any melody can fit into it <3
keep on listening , ill probably surprise you a couple of times ;)