First, this is gorgeous - well done! Have some rep.
Second, and this is just a quirk of mine I'm sure, the wording of the map's nameplate caught my attention: "The fragmented kingdom of Gorian/including the rebellious lands of the Free West/and surrounding lands." I'd change one of the "lands" to something like "territories/duchies/kingdoms/nations" just to avoid the repetition. I'd also ask myself from whose perspective and for whom this map was made. Did the new king of Gorian commission this? If so I doubt he'd refer to the rebellious traitors as "free" anything. Was the map made in a foreign land or for scholarly purposes? They wouldn't necessarily be concerned enough to label the Free West as "rebellious". Am I making sense?
Third, speaking as an utterly hopeless nerd who has studied heraldry since I was ten, I'd be willing to offer you suggestions to improve upon the coats of arms. There are actual rules to heraldic construction, and some of your pieces violate those rules - although they certainly do look good enough for anyone who isn't me and they do a wonderful job of setting the tone of the entire composition.
Fourth, this is gorgeous. Well done.