Ledpig,
The vocals seem very secondary, as if the music was the first layer covering them. Seems to be your style though, since it's in the songs, if you like it, go for it. At least you aren't mindlessly screaming into the mic like so many other "metal" bands today. I don't know if i'd call it metal, per se. Metal tends to have a louder, faster, sounds. What you have it's progressive rock I guess you could call it. The music is very good otherwise, has a good flow. If you want standard vocals increase the sound and make them stand out more, if you want your own sounds (which you seems to already have) then keep the low droning vocals, it got Nirvana famous:aok
P.S. Crazy Guitar is kind of what I do, link is in my sig.
Keep going, and good luck!