These guys remind me of many of the undead I painted when I was a child back in the 80's. They seem to be in a classic style that is pretty timeless. Not overdone, which is very appropriate for the undead. I'd give that lead wraith in the top pic a bit of touch up on the face, like blacklining the teeth to make them stand out. He, and by extension the unit, would look ten times better that way. Perhaps some black paint followed up with a brown wash? Keep up the good work.