This game is good game and very fun!
BTW, I have some suggestions.
1. Share territory tiles dont distinguish. Share tiles should use all fuction's color, for exsample blue and red.
2. When build tower, we can see also territory area.
2. Add more tooltips about UI.
3. when unit level up, add more effects and narration.
4. F1,F2,F5 should be on by default.
5. When hero available, add more effects and narration.
Sorry my bat eng, thank you.