I'm afraid I'm no skilled enough for all that breaking down of channels and all thet stuff. So this is afairly simple process in Pixinsight of;

Graxpert
SPCC
BXT
Histogram stertch,
Remove stars using Blanshans screen stars
NB Normalisation
Maskes curves for colour using Colourmask_Mod
MLT to sharpen
HDRMT
NXT
replace stars with Screenstars
Into Photoshop for some final tweaks and save

AB_EgleRecomb.png
Edited ...
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