This game is a lot of fun but still has a lot of room to grow... one thing to note is that if you put your Farm on a Fertile tile it will net you a free villager each turn, which can be very helpful in the early game. Another thing is that you cannot stack Runes on Warbands, so putting every one on the Shield Bearer made them much less effective...
(Also the Wyvern is Ranged, so can be buffed by the Axe Throwers, fwiw : )

This is nice!

Have you tried Northgard?  It´s one of my allt-time favorite strategy games. It´s amazing and has great match making for PvP

I think you prioritized defence  too much. Shieldbearer, healers and low damage dealers like the cobolds and cheap infantry. All the times you lost the enemy had way more damage then you had.

Doesn't help a lot to keep fighting if you can't kill the enemy.