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I added the green areas (forest and park) and named the burghs. And started to make roads.

There's no direct exit from the city since it's supposed to have a tall hard mountain in the border, blocking the access to the peninsula.

Also, as this have an corrupt government and poor wealth distribution, some of the roads will be more "show off" projects made to laundry money and to improve the life of the richest.

Finally, I rendered this using a local installation of some software OSM uses (Mapnik and mod_tile). That's what I'll use from now on.