Not the most scientifically accurate representation of M16 but I like the diversion of a more artistic interpretation. This one used 'colorized HSO' nonlinear mapping. The data was taken quite a while ago and I've only now processed it. I was lucky to only have to discard a few frames.
900s H,S,O, approx 50 frames each
https://www.astrobin.com/80cvia/