RosetteNebula HOO Palette

Askar 107PHQ Petzval Quadruplet (native 749mm fL; F/7) with a 0.7x reducer (524mm fL; F/4.9)
ASI2600MC Pro (OSC camera)
ZWO AM5 mount with guiding via ASIAir Plus using an ASI178mm mini and a 60mm F4 guide scope
Antlia RGB Triband Ultra filter (H-alpha/N-II, O-III, and S-II)
300s x 7 [Total Exposure 0:35]; with dark, flat, and dark-flat frames
Pre- and post-processed Pixinsight.

I tried my hand at processing in HOO (a Hubble-like palette) for the first time...