Leta (Harpy) is available here: http://www.ebay.com/itm/151002019613?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
Valdette (Siren) is available here: http://www.ebay.com/itm/151002022143?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
The Harpy girl is using a Dragon girl torso and Vampire thighs and upper arms. The match is not 100%, but since this is basically all I have to work with (since there’s no match for these girls D:) I’m happy with the result.
The Siren girl is a pretty good match for the Three Eyed Ghoul torso. The body and upper arms are just a shade darker. I airbrushed around her face to create a better match. It gives her face this neat, glowy effect.