RogueLeader said:
This idea is certainly impractical and on the extreme side, but I suppose I’m trying to illustrate something I felt Palpatine lacked. Like you said, that sense of decrepitness. I picture creatures like a lich, a mummy, Frankenstein’s monster. I think even overlay a dry, cracked or veiny skin texture could help add to that feeling possibly. They nailed the eyes, but the rest of the face looks rather normal to me.

You mean like this?
I honestly have so much fucking fun playing around with these Exegol strobe lights… 😄
https://youtu.be/vKnY8ysDVpE

Edit:
Happy April Fools!