So here are a couple of reprocesses with RGB stars. One keeps it pretty much untouched in regard to the SHO colour combinations (given a linear fit to OIII was made early on). Much softer on everything too to make is wispy and fine. RGB stars. The other has the magenta taken out of it to keep it much like the previous version but now softer on the details.
Astrobin:
https://www.astrobin.com/full/yd157g/C/?mod=&real=