I particularly like Ialenor, where you've mixed Darklands city with Marine Dungeon.

I really do like that colour scheme.

I like the colour scheme :)

30 minute shout! :)

In this style the outlines are entities in their own rights and separate to the land and lake polygons that contain the corresponding green and lighter blue textures.

Both outlines are on the same COASTLINE sheet, but the sheet order means that where the land polygon is below the coastline, the LAKES are above the coastline. So half the width of the line around the lake is obscured by the lake polygon.

If you move the RIVERS sheet up to just above the COASTLINE sheet the coastline and the line around the lakes will appear to be the same width.