omg these are beautiful !!!!
I have a 28/2.0 AIS but have never put it to this good use.
Thanks, Andrea, I'm very glad that you like them. The reasons I use the 28/f2 for night work are - I can stop down 2 stops and get into where the lens is sharpest, at the same time eliminate comma, yet still have a reasonably fast aperture of f4, and the vignette still present at f4 is arguably a positive for this type of image.
Mongo - I won't post another image, but I tried lightening the lower half of the sky and slightly darkening the upper half and I think this works well.