As other ClubSnap members mentioned, this vampire theme was quite mistakenly shot in the day. Some of the models depicted have intense "darkness" but some models didn't. Some facial expressions appear to be grinning or smiling, and almost comical instead of the cold or aloof. Fangs were not fiercely bared, but maybe it was intended to make the "vampiress" more adorable or affable?
I would tend to agree with Luel that (some of) the images felt more gothic than vampirish although it is possible to blend both together. I think it may be the lack of fangs in the images, that is, not long enough, or unseen. Also, the lack of blood and victims.