Link : https://www.youtube.com/watch?v=B5C1A82Cfq4&feature=youtu.be
This is a project I have been working on for the past week. Render is extremely long and I was only able to show at this time 70% of the clip. There will be a full version soon.
I will also post the pics of the scene .
Cool scene. I don't know why render time would be very long though. Are you using Reflective Shader(s) with Raytraced Reflections perhaps?