Suggestions for Tibet
Moorland added (French color)
Gold added to represent
Thok Jalung
Both incenses moved in order to free up space for both Lhasa and Shigatse, with 2 tiles in between them (so they don't have to share a first ring, my ideal locations for them are the two squares in Tibetan color, for both of them, the incenses currently on those spots were moved, the Shigatse incense moved 1NW, the Lhasa incense moved 1W...I think Tibet should have two core cities for the bigger map.
Suggestions for Korea
Moved the river above Seoul 1S, to enable Seoul and Pyongyang to both work their entire first ring. (the two squares of Korean culture are my proposed locations for them) I think this (where Seoul is 1S of its actual location) is better than having Seoul and Pyongyang choke/crowd each other, and better than trying to squeeze Pusan in. Perhaps Japan could also be shifted 1E, so that their territorial waters don't overlap so much?
Suggestions for Western North America (all of the suggestions from here to the end of this post contain 2 screenshots - 1 with the changes highlighted, 1 zoomed out so you can see how the coastline looks)
I tried a bunch of different things to fix the US West Coast, which looked like someone took a bite out of it. This is the one that I think looks best
Added tiles in yellow, removed tiles in purple
I think it looks really nice this way, much less "off" than the current rendition.
Same thing here with Cuba - added 1 tile (highlighted in yellow) for a better looking coastline/shape of Cuba.
Northern Europe
Moved Cornwall 1N
Added 2 tiles to eastern Britain for a better-looking/more accurate shape. I experimented with several different configurations for Scotland, and this is the one that I like the best.
Added 1 tile to Northern Poland to better mimic the shape of the coast (it just out about 1/3 of the way to Kaliningrad from the Oder, instead of having a distinct point, like currently in the map branch) - moved the marsh to that tile, freeing up a better spot for Gdansk, where it won't choke/crowd Warsaw as much.
I don't have a screenshot of this, but would also move the wheat in Sicily 1E, to free up space for Palermo to be built (since it is the biggest and most important city in Sicily)
Added 2 tiles to Somalia for a more accurate looking coastline - I think it looks really nice this way, and it restores the "triangle" at the tip, which is accurate to real-life geography, too