Quick correction. I realised I had stripped some purple from the image when I corrected the purple stars. I added an [OIII] starless nebula mask when stripping the green from the inverted image and this seems to have kept the purple hues in the nebula itself (just below the main core) which is a more accurate depiction of the [SII] and [OIII] in this area (blue + red = purple). It's only minor but trying to pursue an image that better locates the various emission lines.
Astrobin:
https://www.astrobin.com/full/dr0bnt/B/