There are a number of such album covers, indeed. Here are just a few that you may find interesting: Deep Purple, their first, selftitled album features motives from Garden Of Delights by eronymus Bosch:
I had a few, but these were blown away by this website which lists lots of artists inspired by artists for their cover albums reddit.wired.com/submissions_albums/?s=new Take these examples.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.