#1 is my favorite. The Milky Way is visible without being overdone.
#2 is
arguably overprocessed. Heavy processing like this can look good in small doses. If displaying a single night sky photo I prefer it like #1. If showing a set of different compositions, maybe mix several processed like #1, and 1 or two like #2.
#3 and #4 are less-good versions of #1. More subtle but not enough contrast.
The brightest stars have purple halos. Several options for fixing it during processing. In Lightroom, you can try any one of these:
- Use manual lens correction, zoom in on a bright star and click on one example of purple fringing. This is my usual approach.
- Use automatic lens correction "remove chromatic aberration". Works inconsistently with different lenses I own.
- In the HSL panel, decrease purple saturation. There's not much purple within the Milky Way. Don't go too low with the slider because it can leave visible artifacts at the extreme ends.