Ok, I might be the last person in the world who should offer comentary on this, but I think that you have a pixel size issue for the 'dots' that form your city. If you are attempting to create something on a continental scale, like the links in the first post, then the dots need to be much smaller with smaller outlines and shadows - more of a texture than a representation of any specific object.

The 'dots' as drawn appear to be at a much larger scale, like buildings on an island. To make that scale work, I think that the objects would need to be more rectangular or square with sharper corners and parallel sides - and arranged more in line with the adjacent object to start to look like buildings along a road.

I could be way off, but that's the difference that I see between what you posted and the maps on the opening post. I hope that helps.