Nice job!
The mood with the lights is pretty dramatic. Nice detailing on the marks for the window lights.
Because you have staged it this way, with the sky being so prominent and vacant, it's like a stage and the nightly concert is about to begin. Out here, we have a place called The Hollywood Bowl for musical performances, mostly known for classical, but they did rock concerts back when they were popular. It's outdoors, and the effect for evening performances is not unlike this, just at the moment that the skies darken the music starts. So that's where my mind went. I was fortunate enough to see them performing Holst's The Planets. So you can imagine that a staging like this would remind me of that outdoor concert.
This painting begs a story. Beautiful in itself, but I can hear the instruments tuning up preparing to play.
If your story is more about the buildings, then you could safely crop out much of the sky to make a more horizontal composition essentially drawing our eyes closer into the city lights.
Nice one. Auspicious start to the New Year! May yours be filled with all that you love.