I think it looks great!
As for some things I noticed:
- Some buildings have black outlines on the west and north borders, and some have bright ones. I would stay consistent with one style of bordering (I'd probably suggest making them all bright as opposed to all black)
- The water looks like it needs a bit of work; It looks like it still needs to be brought from the sketch stage into the refined pixel phase. Same with that little hut and the sand next to it.
- The cars seem to have a few weird outlines near the hood, where the border is more than a single pixel thick. I assume that was to create some sort of waning look; I suggest that to achieve the same effect (but make it looks a bit cleaner), you simply make the outline more curved (at a very slight curve angle)
- Some of the buildings have smaller detail, some don't. The pink building doesn't fit with the brick one, because the pink one is almost a flat color, and the brick one has.. bricks
which add detail. And on top of that, a (really cool) mural painting. I noticed this in some smaller elements as well; for example, the vent thing that comes out of the brick building stands out way too much, because it's also a flat color while the brick is not.
Among a few other things. I still think it needs another pass or two, but this first revision is really a great starting place; it's already mostly done. It just needs the fixes and details. On an unrelated note, one detail I really like in your little city is the Bank. The letters seem a bit crude and blocky, but that view through the window that exposes a teller's counter adds a really nice effect to it