This is a very unheard of figure line (to most people) the mameshiki from Liquid Stone, and this is number 07, Cirno from the Touhou Project series of games.
Yes, there IS a nendoroid Cirno, but… well, this more unique.
The customary profile shots.
The design that the mameshiki employs is more articulated than a nendo.
And could stand by itself without the aid of a stand (large sized feet are a big help).
Yes, crystal-like wings, quite unique, really.
No, not four, but six wings really. There’s a pair that is in between the two upper and two lower wings and not so visible. And yes, the wings does lets through light.