So, there is a lot more nebula detail there, I was mistaken. I just did LRGB-combination, Photometric Color Calibration, HDRMultiscaleTransform (5 layers) and ArcSinHStretch, and a bit of a sinusoidal curve to L. It took me only a few minutes. Unfortunatly the core is blown out and the stars are blown out in red - you should try a bit shorter subs. This image is very much reduced, but it still looks good at full scale, no excessive noise in the shadows. I have not tried to fix the stars, probably works with a blurred star mask and Morphological Selection on the R image only. I cannot do Photoshop, only Pixinsight.
Edited by Rasfahan, 22 January 2021 - 02:13 PM.