Dionysos, one suggestion to you and to everyone who live in areas where there are not too many city lights about that provide the light you need to "write with light", i.e. to photo-graphy: don't wait until midnight but take photos at dusk, even deep dusk, but at a time where there still is some light left in the sky. That helps the photo get some more detail, also in areas that surround your intended subject, thus helps not to get so much "dead space", and it helps your measuring system not to be fooled into believing that all in all everything's so dark that no photo can be taken. For when there is only so little light around, and then there are those few light sources, the camera will try to "expose right" and bring out what little light there is fairly brightly.
I can tell that you did choose a small aparture, which is a good thing to have done: your light sources are stars much rather than big, fat blobs of light. So you are on the right track. But with so little light around, it will remain a tough task to get the photos look "easily pleasing" (if I may put it like that).
That said, I must say I do like the first with the faint light on the houses. And I can't really make up my mind about the two versions offered. Something in me does like the b&w version very much, and a tiny other part - the colour-loving part! - says "But the blue of the near house...!" Don't know WHEN those two parts inside me will reconcile...
But I know for sure that the tower, for example, ASKS for being photographed in the dusk much rather than shortly before midnight. I think...