Well see, that's the part of "not quite how I envisioned it."
While Raylectron is good, volumetrics is not an option, wet streets have to be done manually and this model was barely responsive as it is, fog has serious drop-off and can't be adjusted in Raylectron nor can density.
No HDRI as the fog would not allow it to show.
Also, the green lights were supposed to be lasers, but without volumetrics, it didn't work.
As for colors I have no idea why the white robots turned grey. Not the effect I wanted.
I'll come back to this one day when I have a more powerful PC. Thanks for the suggestions.