I think this is a wonderfully colourful map. It does the job you intended, and reminds me of imperial maps you might find in a textbook. It would make a great map for a novel or RPG set in an alternate imperial age.

Giving the oceans a bit more detail, like the shipping lanes you mention, would be useful, and perhaps exporting the map from CC3 at a larger size would make the tiny text easier to read. Other than that - it's great. Well done.

DMG