The main idea is really good. I liked the atmosphere of the game when the combat started. It would have been cool to see it more polished, it can even become a full game with a lot of potential.
Some ideas that I think would suit it very well if you keep working on it or expand it:
- Improve the combat with different types of attacks and their stamina response with cooldown time.
- The possibility to dodge, parry or hold with the shield (maybe even a front line of heavy knights).
- That when any soldier falls, his corpse stays there without collisions, but to give the feeling of a real battle.
- It would be amazing to include other types of units archers, cavalry, spearmen, even artillery...
- It would improve the visual differentiation between enemies and allies.
I hope I'm not overwhelming and that you find the tips useful. Best regards!