I designed and 3D Modeled the Jeweled Oni Mask she is wearing. 3D Modeled in ZBrush and rigged for Animation in Maya which you can see from the 2nd image the mask opens. The hanging chain links are also rigged with 44 Joints in total.

3D Character: Dekaria, another custom character of mine.

My Cinematic Asset Production Pipeline:
ZBrush - Sketch/Design, Sculpt/Refine Shapes, Add Secondary & Tertiary Shapes, Retopologize, UV Map, Mat Zones, Bake, Texture, Rig and Render.

You can buy the Jeweled Oni Mask via my Official PA Store in the Daz 3D Marketplace.