I find it quite expressive. Don't be mad at me, but the Elven looks more like a hobbit lich.
the hobbits fon tolkien also have pointed ears and because the mouth is very high up. since the mouth, nose and eyes are so close together, the face/head gets a rather round shape
that with the Lich could fit, since elven may decompose differently than humans. Especially with the lich you always have to consider that he is extremely powerful, but despite everything is an undead, organic/dead tissue decomposes very quickly (especially in summer) if you haven't treated/conserved it beforehand.
long story short
I think it turned out well, with the colors and the expression. even the skin is hanging loosely on the bone (on the face) which is really well done. also the cockroaches on the forehead have something.