Hello, I really love the mod which is basically my new native and I have four suggestions:
1.
Dont give human player the full +100 bonus to army size when becoming king. Instead link it to right to rule so it scales from 1 to 100.
Maybe also reduce the right to rule bonus you get from easy things like companion quests (or have move consequences for conflicting propaganda/false promises), at this point you can send all 22 companions on their quests if you do it right, which gives already 66 RtR alone, too easy imho.
2.
Give sea travel more meaning by introducing oversea cities (belonging to a 7th possible neutral faction) that can not be reached by land. They should offer also something special that cant be gotten anywhere else, e.g. better trade prices, unique trade goods and/or equipment, unique mercenaries and/or a quest chain starting there to make them worthwhile. At this point in time (2.53) sea travel is a fun gimmick but not really worth the 50k investment.
If the AI does not use sea travel (yet) those cities should be basically impossible to conquer as otherwise they will become an invulnerable powerbase for the player. This could be done be giving them a really strong garrison that makes it not worthwhile to try to take them while still being technically possible.
3.
Give sea travel more meaning by introducing the option of coastal raids of cities and villages. Check if some scenes from here http://forums.taleworlds.com/index.php/topic,178784.0.html can be used for starters.
4.
Check if some (or many even) scenes from here http://forums.taleworlds.com/index.php/topic,178784.0.html can and should be used instead of the present ones.