LORD BELIAL: NOCTURNAL BEASTHere is Lord Belial with their second entry in this list, the amazing cover to Nocturnal Beast. This is one of my all time favorite covers as it shows some demonic entity ripping someone's chest open. Pretty gruesome.
HYPOCRISY: VIRUSHypocrisy is one of the better straightforward death metal bands from Sweden. They also have a lot of sci-fi lyrical themes as shown by several of their album covers including this one. An amazing piece of artwork, it is even more impressive upon closer inspection. This is Hypocrisy's comeback album after a couple of subpar albums.
PHAZM: HATE AT FIRST SEEDPhazm is a pretty decent black metal band out of France, of all places. This album is something of a concept album about trees coming to life and killing people. The album cover reflects this theme. Musically, Phazm plays a genre that has become known as black 'n roll, with classic rock structures invading their black metal riffs.
YYRKOON: OCCULT MEDICINEYyrkoon is another band from France. Yyrkoon though plays a style of death/thrash metal. This album is a concept album based on the cult horror classic Re-Animator based on a story by H.P. Lovecraft. The album cover looks like something out of House on Haunted Hill or something like it. An excellent, underrated band.
SWALLOW THE SUN: THE MORNING NEVER CAMEThis is probably my absolute favorite album cover, and boy does it match the music. I picked this one up randomly and was absolutely struck by the oppressive sorrow and brutality the album packed. It's an amazing cover and an amazing album. Swallow the Sun is one of the better death/doom bands in the scene today.