I perfectly understand what you mean, but as i said, it's only a matter of personnal taste, not a criticism on your painting skills.
It's just that in my mind, vampires are closely tied to the look defined by the french comic "Requiem, vampire knight" (by Mills and Ledroit, a commic very, very politically incorrect, must I say ! ^^)
Just take a look at this :
http://img46.imageshack.us/img46/9682/requiemg.jpg
But even with blue skin, please keep us showing more of your wonderful stuff !