Incredibly sharp Bert. As Mike states, the foreground star colours a still a little muted. Background stars are looking great. You could do the trick I use when combining Ha and RGB data. Typically when you combine the two data sets, stars go crazy. So I copy the original RGB data that has been subtly stretched and saturated to bring out the star colours. Make this a new layer mask (hide all). Then simply highlight the stars on the mask layer. This will bring them out in their natural colour and dimensions without compromising the nebulosity or star field. This is one of many options. Certainly your best to date.
