Well perchaps 30sec exposure is very long, very long time at 100% dark. So here the result looks different but not very nice. Also some lines from the top to the bottom... I am not sure what are these..... are from scanner, from the long exposure (reflections at the lens)?
I like this work a lot! IMO, I do think that it could be improved by cropping some of the bottom and right side, so the eye would focus more on the moon and the beautiful cloud!
Ciao Roberto, this cityscape seems just a little bit to soft. My guess is that, during the process of scanning, it lost some details. Nice anyway. Great sky. I think you should work more on skies. You do have the talent for it. A presto, Marilia Io sonno da Brasile e vivo a San Paulo.