I revisit this data to apply some newly learned techniques so this description applies to revision C.  The text after the line applies to revisions A & B.

I revisited this data with an eye towards applying some recently learned techniques.

Processing is a tad more complicated but it was worth it!

H and O masters:
dynamic crop
deconvolution
TGV Denoise (same as original processing to this point)
histogram transformation
clone each master and call them o_starless and h_starless

h_starless, o_starless
StarXterminator (clone the images as h_lum, o_lum)
TGV denoise

HOO:
channel combination (h_starless, o_starless, o_starless)
histogram transformation to balance color peaks
channel combination lum->L
pixel math in hoo_stars using star mask (max function)

lum:
pixel math (h_lum+o_lum)/2 to create new image lum
TGV Denoise
LHE (2 scales)
Adv Sharpening script

hoo_stars
channel combination (h, o, o)
spend 2 hours finding just the right star mask to apply to HOO

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The weather continues to be unfriendly to imaging at home but thankfully the system at SRO keeps on going.

These processing steps are for revisions A & B. For processing in revision C see it's description. 

Processing:
H-a
dynamic crop
deconvolution
tgv denoise

oIII
dynamic crop
deconvolution
tgv denoise
linear fit (to h-a)

HOO:
channel combination
histogram transformation
LHE
curves (contrast & color)
tgv Denise (chrominance only)
Adam block's star de-emphasis
Adv Sharpening

With LHE and the curves I used a GAME mask to affect the Crescent only.
Then I inverted that mask to bring down the background a bit to create some visual separation between the nebula and the background nebulosity.

Finally, in revision B, I used the color mask script to select the blue and then used range select to (mostly) get the OIII emission. I then binarized it to clean it up some and then used clone stamp to clean out some extraneous bits. With that mask in place I brought up the level some to enhance the OIII.