They started looking like someone out of Underworld fanfic instead.

Dawnguard introduced Vampire Lords. In ESO we're regular vampires, so we can't look like Vampire Lords. Quite logical. So we look like we always did, pale and ugly. Can't say I like it, it's one of the reasons that kept me from becoming a vampire in TES games more than once, but it is what it is.

Ri_Dariit wrote: »

At least Khajiit's fur should not turn to moon-color, as lack of blood in skin should not copy to fur-tissue that doesn't require blood to stay shiny.

Agreed I really dont like being a grey kitty

Insofar as I know, there's a lorebook somewhere that indicates the way vampires currently look in game is completely wrong - we /should/ look completely normal, except for maybe the eyes.

I remember a lorebok that I ran into a while back...it was a story about the vampire hunter who talks to an old man, asks him about and then goes to face those breeds (IIRC, one of them can reach through ice). At the end of the small story, the hunter asks about a certain breed that is apparently indistinguishable from a normal mortal, then finds out that he has been talking to one of those the entire time and becomes dinner. If someone happens to run into that one, please share the location, as I think the strain of vampirism is the same one talked about at the end of that lorebook.

they should have some issues with sunlight for sure.

http://teso.mmorpg-life.com/noxiphilic-sanguivoria-lorebook/
"they are not weakened by daylight as in other strains of vampirism, but are, instead, strengthened during the nighttime hours." Again, disregard this if I'm wrong and the strain of vampirism players have isn't this one >_> But...worth mentioning!