yeah they just rough stuff and as for the last one looking metal the band are into that sort of stuff(they are heavly influenced by necro) thanks for the comments and the 80's cant help that im a 70's baby raised in the 80'slast one looks more for a metal band the rest look 80's.
Best bet is to keep it related to your name and simple.
so like the word EGG in an Egg like shape would look effective.
always remember the best design is memorable. and in most cases done for purpose.