This is interesting. I am assuming that this map is the entire world, including both upper and lower hemispheres. Skalea extends to the pole, and is partially glaciated, creating a stationary north cap with southern reaches of Boreal Forest. The south pole is open ocean. Likely cold waters but no polar cap down below - there's no land to anchor one, and no surrounding land masses to let long term sea ice form. Assuming axial tilt for seasons, this may produce some really interesting effects, in terms of north south currents. Basically, cold water is heavier than warm water, so it submerges and flows south, which forces warm water up top and north - that's your gulf stream, and other stable currents like El Nino and La Nina. ​ What you have here is basically a narrow water chute between the two bordering continents opening on both poles. So, what you'll get are reversing seasonal currents as the world proceeds on its axis - in North Hemisphere winters, the South Hemisphere will be summer, warm waters will flow south to north. When the Axis is the other way, north hemisphere summers and south hemisphere winters, the flow between continents will be north to south. Which has cool implications for sea travel and navigation, settlement, waterways etc, particularly since the configuration is not smooth, but rather, waters will flow very differently whenever they reverse direction. With attendant consequences for rainfall, etc. Well, a lot depends on scale. You have three continents - so loosely take Edeonia - how big is it? 10,000 to 12,000 miles north to South? Or about the size of Africa/Asia? Or 5,000 miles north to south - about the size of South America/Australia? 1000/1500 miles? About Greenland size? The interior region is probably very fertile - very productive fishery, but super-complicated sets of currents which change seasonally. Great sailing territory, but navigating is going to be super-complicated, if stable. Navigators and sailors are going to be expert and seasonal driven. Fisheries productive, but also highly specific and seasonal. Lots of emphasis on local knowledge. The interior region is probably very fertile - very productive fishery, but super-complicated sets of currents which change seasonally. Great sailing territory, but navigating is going to be super-complicated, if stable. Navigators and sailors are going to be expert and seasonal driven. Fisheries productive, but also highly specific and seasonal. Lots of emphasis on local knowledge. Both continents have what looks like fertile flood plains in their lower halfs. Edeonia's looks much dryer, probably grasslands, strongly seasonal rain patterns. Uplos flood plain is probably more reminiscent of the Mississippi basin - wet, fertile, constantly replenished. Both relatively hard to defend, and prone to being overrun... that's flood plains for you. More complex geography further north - smaller fertile areas, more broken up, but more easily controlled or defended. That's where you get your tougher states. Skalea, as I've noted is partially glaciated, lot of boreal forest. Probably not big on agriculture - there aren't many good crops, the growing season will the short. A lot of the protein comes from the sea. Also expect a lot of cattle herding and milk and cheese supplementing the diets. Athery are likely famed sailors, and likely timber merchants - a lot of high quality seasonal wood comes from there. Also, pseudo-Viking raiders, lots of sailors - they'll have experience with very rough seas.