17" F4.5 huh?...niiice
...rather extensive that
I see you have gone with some hard processing for extreme depth at the expense of fine natural details and that's cool.
The dilemma here is trying to showcase both the star burst features in the OIII and the radiating cometary globule details in the Ha in the final image. I found blending the Ha and OIII data was a compromise in the end showcasing both well was very difficult (Jase somehow managed it with the 24" data he gathered though - magician?).
From memory even deep SII on this object is almost featureless?
Nice work mate
.
Mike