Yeah the field is amazing huh?...pretty well coloured for a HaRGB from the inner burbs of Melbourne, so well done
As you say, there looks to be some blue missing, that NGC 6595 area does have some lovely colour in and around it if you can get it to show, so I think darker skies would have helped with overall colour fidelity in general. I really liked your original EE Barnard Ha version though
Mike