Wow, this object has had a thrashing, eh? Not just me, it seems everyone is having a go!
Well, my three dragon race has been run and I'm knackered with an LRGB, HOO and SHO each (we won't mention a rather poor attempt at HaLRGB for the quadfecta).
For your viewing pleasure, here is my interpretation of the Hubble palette of NGC6188 and friends.
I have tried very hard with this one to go "less is more", similar to my HOO version but with even less. No artificial sharpening, minor noise reduction and careful stretching, some colour manipulation to remove some of the green and the addition of RGB stars.
I have left it a bit tame in the colour palette as I felt I was murdering good data trying to get it to be teal and gold all over. It appears to respond to the subtle colour change better and reveals a lot of structure in the nebulousness over most of the image.
Doing these three images has helped change the way my processing is being done, with some core strategies for linear data now firmly entrenched in my mind, seemingly giving rise to much better data when stretched. Of course, it must be good data to start with (well, as good as I can get it).
I hope you take a look and find the viewing enjoyable.
https://pbase.com/grahammeyer/image/170749933
Cheers and clears!