Looks badass! I’d suggest sticking with a solid cool white so that the original colors are preserved and pop.
I collect pinball machines, and it’s fairly common to do something similar behind the backglass art of machines. The ones that always look the best (IMO) keep it simple with a cool white.
Either way: looks great. I may do something similar.
I tagged him when I posted on Instagram. He responded with a like, so it was cool to know that he saw it.