Back covers of Heavy Metal albums

Here is the back cover of an Iron Maiden album, where you can see that again there are a mixture of reds, blacks and orange for the background and within those colours there's another fire and a cave of some sort I think. So again the back looks like its in worship of Satan as does the front.

Here is the back of a Metallica album, where again you can see that there are mainly colours of blood red and black in which this particular album shows a monster type creature with a fist on a rope around its neck, this is still very Satanic.