is a software program for creating three dimensional models of the
human body. You start with a naked body shape (male, female,
adult, child) and then you manipulate the pose by adjusting
every joint in the body.
You can add skin tones, hair etc as well as a wide
range of clothes that are "skinned" to the body so they
move as the model moves.
If you are so inclined you can even animate the models.
I haven't seen many Vampirella's created in Poser,
but two I have found are shown here.