Thanks all. Some expressed opinions well reflect the circumstances : when taking all these pics but the last one, I was bored / frustrated. Photography as a bad habit.
The last one, taken one evening later, is much more of a lovely scene, and I did not have to force myself in making something out of it.
Straight out of camera, with the usual settings (-1 EV under such circumstances) ; the only PP consisted in re-framing into 5*4 vertical format. The lens does not require distortion correction, and the camera makes noise reduction superfluous in most cases.
Those two are definitely my travel gear (and I can recommend, out of experience, the 28+58 combination).
@Erik, about the "funky bokeh" : yes - in that compartment, the Voigt 58/1.4 is only average. In a direct comparison with the 58/1.2 Noct, latter would win. However the Voigt flares less, which is important when it comes to street shooting with uncontrollable lighting conditions.
Besides, I hesitate to take the Noct with me on biz trips where photography is not the main aim. Such an item is nearly impossible to get replaced, while the Voigtländer is at least ten times cheaper. I handle my gear with utmost care, but...
