This scene is a bit different from your basic scene, as it has a lot of traffic and a functional maglev system. So this is actually a replacement scene for the maglev station when you travel to the city hall.
The city in the game is meant to be full of Particle based traffic and the city hall exterior scene is the first scene where this is on full display. The same traffic will also be used to liven up the travel screens.
Some of the game locations were made with midjourney V4 back in the day. And it has an aesthetic I love, but I recently stumbled upon ways to upgrading old locations all within Midjourney to make them a lot better!
Sometimes these locations require more art direction. More specific features. In these cases, a lot more work is required. Here is a breakdown for how to use Midjourney editing tools to direct the image generation.