I spent a little bit more time on this project. Thought it would be nice to have there some kind of "houses" for those poor workers in the lower city. Made them with green lights. Probably because they feel a bit toxic :)
the main view is almost the same
but i also tried a random view from the lower city. I will add some piles of coal, workers, steam etc. but i like how they can see a bit of that sunlight above them. the biggest challenge will probably be to make those gears and pipes look like they have a meaning :)