Im not a "metal" fan.
You're voice sounds appropriate for the type of music. As you mentioned the guitar is fairly weak. I gotta give you props for attempting to make music, it was a decent attempt for sure. With a bit more practice I'm sure you could achieve a better sound, or get a band behind you, because like I said, you've got a wicked voice for this. Keep at it man.
I have no idea what genre you would call this but it is certainly not metal... to be honest at first I thought this was a joke or making fun of metal or something, sorta sounds like your trying to sound like the band ZAO to me, maybe you should give them a listen. I gotta say I'm really speechless....sorry bro you prolly hate me now ><
You sound an awful lot like someone who defines the metal genre through Nightwish or something, and never has heard anything of subgenres like deathcore, doom metal, or anything. :D