Dark Elf Skin Color in Battlespire

[MidbossVyers]

I notice that dark elves in Battlespire (and some in Daggerfall: http://uesp.net/wiki/Daggerfall:Helseth) have brown skin and red eyes, rather than gray skin and red eyes, which more closely matches a lot of other fantasy lore for dark elves. In Skyrim, I often use mods to make my dark elf characters brown-skinned. And then, there are a couple dark elves even in vanilla Oblivion that had this skin color: http://uesp.net/wiki/Oblivion:Arvin_Dalvilu which appears to be a blend of brown and green. I don't see that in other fantasy lore. Don't over-interpret it. Just making some observations.