I would think it would be polystyrene just like the others. However the blue flames and probably the papyrus will be plastic parts. Like the sirens water.
You can use the 10% off on this piece. I agree the price is too high but I really like this line so I've pre-ordered her with the 10% off code. although there are a couple that I don't really have an interest in most of these cotd statues are really unique.