Thanx Marc
Have reached a turning point and what is the way?
I can now, using photoshop (masking) turn anything into anything.
Add blue nebulosity where there is none etc (I have not done that with this image).
Such techniques and you enter the realm of 'AstroArt'.
I don't have a problem with making pretty pictures, but unless the artist specifically states that the image is 'enhanced', it can be very misleading to others trying to replicate the scene.
Personally I have spent hours trying to capture a blue field, to find out there isn't one.
Live and learn