Got starless Ha and SII with some slight artefacts but combined them to work on colour and ended with something a little different. I cropped the image too as the outer gaseous areas weren't really adding much (a sort of nod to a smaller image scale). Also turned it all around and got more out of the middle although this was harder than I imagined it would be. Stars need to be redone as they were just added back in via the luminance channel rather than be layered back in more deliberately. Attached are the starless images, the starless colour and the end result (for now).
https://www.astrobin.com/full/351715/B/?real=&mod=