Super. I'm surprised no one has asked the obvious. Errm -- how did you do it? If it's just coloured filters over your transmitted and incident light sources, you've got amazingly good clear separation. Or is there a certain amount of Photoshop and channel separation involved? Great result however it's done.
Sure there's quite a bit of Photoshop involved. So here's a crop from a single jpg. It is contrast enhanced to match the grading of the final image a bit better.