Neela is absolutely right! Definitely check out the anti-aging mods. There has been so much contention among the vampiric hordes of Obliv players because apparently after a certain point in the game, your character not only horribly ages but actually just turns into this default vampire face that he'll permanently keep unless you get a mod or keep renewing his appearance by harking back to your save games file.
Even female vampires get this awful default male vampire face when reaching a certain age ... so I will always say this same thing that I firmly believe:
All vampires should be all sexy all the time ... how else are they going to lure their victims into haplessly baring their necks???
