Sticking with the program here's my rendition of NGC6188. Big learning curve for me so not perfect. I need to sort out my data acquisition especially Sii. Oiii is a little iffy as well with heavy LP and skyglow on humid Friday night. When I have some more decent data I will try again and complement.
So the blend is R(Sii)6h G(Ha)2h B(Oiii)2h. I shot this with a QHY9 and a SMC Pentax-M 200mm stopped at F/6 Tuesday, Thursday and Friday night from my backyard.
There's a HD version
here [2.56MB] and a full frame 1:1
here [6.45MB]
I'll try to post a how to on the blend later on when I've put something together. Thanks for looking.