metal-like

I commanded one of my fellow class mates who's doing graffiti to make me a tag using my initials, and then I made him a "black metal"-like logo (the bottom one) with his name in return. Turned out it became pretty popular, so I made logos for two other class mates too..
Should you be in doubt, this is what they say from top to bottom:
JOHN
JAB, Who btw is on DeviantART: [link]
HENRIK

After getting to know the different styles, it turns out the logos can be classified as ( roughly ), from top to bottom,
death metal
black metal
parody of black and / or death.