Glory Of The Earth Goddess

What's this?  Concept art for an actual location in Rebel?

Well, the general inspiration was the Eldergleam Sanctuary in Skyrim, as in an entire ecosystem thriving inside a cave (or underground in this case).  We settled on this as a basic outline for a shrine of the Earth Goddess with a gigantic statue of her made of crystal.  There's more to earth than just the color brown.