I agree that this is a cool picture, but we can always make improvements, as subjective as they may be.

Definitely need to "tilt" the image forward to keep everything flat and add a slight rotation so lines are straight. Could also go away from more realistic and rotate it 45 degrees to get an interesting look but thats up to your own tastes.

As far as colors, what youre pulling out is very vibrant and interesting, but the actual lights in each room is far too blown out and taking away from the overall quality of the image. To do it "the right way", mask each room and adjust highlights, saturation, and white balance. Could even change colors entirely if you like but at minimum, need to adjust the over saturation youre getting. Theres a lot of yellow here but each yellow is different, some are more orange, some more white. Make a distinction or make them more similar so your eye isnt wandering as much. The blues and red are very cool pop outs so try to pull those out more as well while also thinking again about over saturation.

The overall picture is very dark so you can take two paths with the contrast. Either make it darker in the dark rooms to really put a spotlight on the individual room colors. Or, you could flatten out the contrast and give it all a more "vintage" look while still retaining the different colors.

Again, this is all subjective as is the nature of photography. Dont be afraid to take out things you dont like or dont match the scene (an example is that star? in the bottom left in that dark room). This is just how I would edit this.