Managed to get a few hours of M20 last week and did some processing today to see how it was progressing. This one is 3.3 hours LRGB using the SN10/QSI683.
I like your subtle colours in the nebula, but there is still good colour in the stars. Guessing you might be closer to reality than the usual vibrant red and blue that one can easily pursue when processing this object. I might have to remember my pontification when I process my dataset.