Thank you! Very interesting video and good advice.

I think your method is good. Visually it's not blue enough for me though. (More blue may not be more realistic, but is more cinematic, I believe) What's your ambient setting in the scene there? I would change the ambient to 60% dark midnight-sky-blue blue. I usually use it for daytime scenes, but it can work with nightitme too, and your lighting setup looks good for that, I think.