Beautiful, beautiful work! I would run the albedo on the black marble through PBR validate, and then drop a PBR safe albedo node right before final output, with tolerance on 0 to bring the dark values into proper range.(granted you are using substance designer?), the value seems to be outside the PBR range?
This is looking very cool, really like it so far! I prefer the previous lighting though, the new lighting looks a bit artificial with the strong reds everywhere. This could look pretty awesome if it was sun lit only, letting the bouce do the work for you (and maybe exaggerate it here and there by using fake lights). The…