Definitely looking way smoother! Good work.
I'm a bit of a perfectionist, so there's one horizontal-ish pattern of 4 bright pixels I'd probably want to break up or rotate through 90 degrees. But honestly, I'm stupidly sensitive to tiling issues and 99.99% of people will never notice an issue with what you have here. It's good, and any more work you put in will have diminishing returns.
I noticed the shadow coming off the left of the buildings. I mean, I've been looking at this image for a while and it took a while to spot, but it looks like the light source is coming from the exact right (but mainly from directly above), as the shadow extends horizontally from the base of the building. However, then you would only see a small triangle of shadow as the rest would be hidden by the wall.
If the light was coming from south-east (assuming north is up) then we wouldn't see the angled part of the wall casting a shadow, just the straight section. Assuming the shadow was long enough. At the current length it would be hidden.
The fact that both the angled section of wall and the straight section are casting a shadow kinda makes it look like the whole isometric design has been mapped onto a flat shape which is raised off the floor.
You could change the angle of the light or lengthen the shadows to fix it.
This is difficult to describe in words, so if you're interested and want an example as an image, let me know. But as I said, it took a while for me to notice this so you may not want to open up this particular can o' worms.