Just something I noticed that I don't get and things you should add.
What I noticed is when painting terrain, the AI doesn't like walking on grass :/
Anyways, you should add controllable PCs (Player Characters) they would do all the things the AI can do only you control their actions.
Also, maybe add a conflict event triggered 1/20 of the times AI run into eachother? Like you could see arrows flying across the map or sword icons over top of of the AI when they are attacking with melee and a shield on top of the other guy if the attack missed. If they take damage it would show in red text -[NUMBER] over top of the AI tile icon for how much damage they took and above all the AI there would be "currentlyHP/maxHP" kind of thing in small grey-white font. (Max health would be random based on the 4D6, throw the lowest number away rule) Because you can only have a limited amount of AI on the field, so that you don't kill everything off, maybe they would just fall asleep if they die? Either that or add factions and people of the same faction have a zero chance of attacking eachother.