Really neat, like all your stuff!
There's something odd going on with the light in this, though. I've been sitting here trying to figure out what it was. Initially I thought it was the shadow family being around the same strength as the light family causing a clash, and that it needed a core shadow to separate the stark hue shifts. But I think the real problem for me is the green hue shifts in the light family, I think I read it as specular light. Since that "specular" is around the same light intensity as the shadow family, it probably causes this disconnect.
You play around a lot with rendering so I figured you might appreciate a more technical comment. You work is dope, dude.