First off, I don't see any form of a city theme. There's a few elements here and there that resemble a city like buildings but not much else. To fix this, I would say to add more city-type decorations such as buildings, billboards, and streetlights that still fit the monochrome dystopian style. If any resemblance to a city exists, they should be way more visible because that's the primary idea of this level.
The first section also feels a bit overdone and cluttered. The amount of pulsing objects feels good for a city environment, but some objects blend into the background and doesn't mix; it makes a lot of visual clutter. It can make things harder to see and prompts more focus than I think is really necessary. To fix this, I'd say to space out the pulsing objects more, and to brighten objects in the BG so they're easier to see.