Command Center inspired by Sailor Moon Crystal

I've been building a set inspired by Sailor Moon Crystal in Blender. So far, I have a really bright moon and the beginnings of the Command Center in my own flavor. 

My favorite part at this point is the stone texture. Every item that uses it is an instance, yet it is different for every instance. That means every stone  in the scene, including the parts of the columns are unique, even though they're the same exact model and same exact material.