Light blue skin, pointed ears, almond eyes, white hair.
As per a typical elf, he has an angular frame and unblemished skin. From the one time Prisoner #3 saw him, he was wearing regal clothing.
Apparently this elf lives deep in the south, in an ice kingdom.
His portrait was found in one of the dungeons the party cleared out. He may have something to do with Prisoner 3’s capture.