Alan, as Josh said, you need to process the raw to get the colour correction better.
Here's your shot adjusted in Photoshop RAW with the colour temp adjusted back to -22.
Just to give you an idea of what's in there.
Alan, if you don't have RAW processing software search out Rawtherapee. It's free and powerful. Play with the RAW photos and save them as jpg's and you done.
Whether or not they were shot in .raw or .jpg to start, they just needed a bit of tweaking with curves to bring them out a bit, there's good stuff there.
I've taken your unmodified frame from your link into Photoshop, run levels with a gamma of 2.4, then curves with the 's' shape as attached to bring out the colour in your image. Then resized to fit into 200kb IIS file size, saved as jpeg. Very rough, but it shows there's a lot of good colourful data there. The histogram (top right) is coarse because of the limited number of levels in the frame saved from the webpage.
You've got very nice frames indeed, with even a bit of the orange dust around Antares, and a wee satellite trail. I guess there was some streetlights or a passing cloud affecting the top right
If your originals are *.raw, then you can do better than what I've done as you can get deeper into the black (more bit depth)!
