I've noticed that in the opening sequence, and the big climactic moment at the very end of the season, Lucy has her hands on the figure's back with the ring/middle fingers together and the other two fingers separated in a 'w' sort of shape.
Is this a symbol of love, a reference to Gustav Klimt (like the paintings) or something else?
I've also noticed it on the cover of the 3rd Vampire Bund Omnibus.