Hopefully this is not considered thread necromancy, but I have some updates to share!

I worked on the textures some more, finally gave the sea some colour and less bumpiness.
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The next image is as far as I have come as of now. I have added forests in all the right places, then a drop shadow and also some shadow around the mountains.
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It's coming along quite well. There will need to be a big re-texture once I have all the main elements in place and I will do a lot of manual terrain painting to get the colours right. I'm not going to go too in-depth with map labels. I think I will add region names and labels for the main cities/locations.