Now THAT is an interesting design! Making the lower parts of Malthael's robes turn into the Prime Evil, implying the consequences of his more than probable use of the Soulstone's power... That's genius!
are you done? some evil looks seem off because you shade too blacks but bottom looks brighter than blacks. so maybe u should add little more shade and add more red shining. and also that man with shield, that head doesn't looks like looking at evil soul… looks ike looking at little evil dog or bugs things. just the suggest hints but i do love your artwork but just need little fixes thanks