Can you confirm are using these DSS settings
? (e.g. with white balancing turned off).
The dataset appears white balanced to me, while the exposure length seems a little too long as well with many stars over-exposing (or perhaps an too high ISO
Making sure the stellar profiles stay under control by not exposing too long (or using an ISO that is too high), will often allow stellar profiles to be coalesced successfully into point lights better using deconvolution. This may also help somewhat with the chromatic aberration your lens seems to suffer from.
Be careful when using the Shrink module for very dense star fields. It can make your image look "stringy" or "wormy" if stars are not (or cannot be) properly separate in the mask, or are too close together.
If you are trying to de-emphasise stars in extreme wide field images like these, try relying on the Life module's Isolate preset (no particular mask set, e.g. all pixels selected/green).
To see what we got (see above)
Remove stacking artefacts.
Parameter [X1] set to [8 pixels]
Parameter [Y1] set to [10 pixels]
Parameter [X2] set to [2992 pixels (-6)]
Parameter [Y2] set to [1980 pixels (-4)]
Image size is 2984 x 1970
--- Auto Develop
Final stretch. Defaults.
Mask > Auto > Fat Stars > Invert
Parameter [Mask Fuzz] set to [3.8 pixels]
Defaults (make sure mask fully set/green)
You could even run this twice.
Parameter [Bright Saturation] set to [2.00] to hide problems in the highlights.
http://download.startools.org/TutorialR ... tha_MW.jpg
Hope this helps at all!