it isn’t much complicated model, but i saw this-typed ring in povray gallery, and i tryed to make the similar in blender. It’s succeed, in my opinion 
That’s pretty cool!
Looks like the rings could be a little closer but overall I really like the idea and it’s a nice render, maybe some DoF to blur out the boxes and make the ring the focal point, even though it already is.
Very cool. I love the texture on those boxes.