You have hot pixels in both images so you need to employ some darks in your imaging and processing. More data will also help clean up the detail. Great effort. Keep it up
Thanks to the people who offered me advice on processing in a recent thread the attached image is the result.
9 images single binned daks subtracted then debayered
7 images binned 2X2 darks subtracted and resized X2.
The attached image is a crop of the central region.
Some slight progress so further advice/criticism welcome.