This data came from the Astrobin's Raw Data bank. I processed this 98% with StarTools then used the online PS clone, Photopea, to selectively manipulate the colours to give it the "hubble look".
The first version is what I consider to look more dramatic with all 3 images (Sii, HA, Oiii) processed independently.
https://www.flickr.com/gp/rkonrad/189aU5
The second version should be more scientific as I processed each image absolutely the same (92.5 in the develop module). This should show the the distribution of gases more accurately.
https://www.flickr.com/gp/rkonrad/61AE85
Cheers Richard