Well...
Well...this can be a good game...I do see a spark of potential in it...but there are some things I would change/remove:
First and foremost, take out the fact that you only have a limited army. If the enemy has an infinate army so should you. You can only buy 8 troops in the beginning and once you use all them up it's pretty much Game Over. That one aspect of the game really killed it for me.
Second, it seems to me that the enemy troops are A LOT more powerful than your troops; even at the Very Easy level, 2 shots from an Archer Unit and my unit dies?!? Come on! I mean my unit finally engages an enemy unit and I'm chipping away at the units healh little by little and the enemy unit taking my health off in huge chunks. You really need to fix that--I could see that kind of power in Hard Mode, but not on Very Easy. This is why I suggested taking out the limited ammount of troops your army has; so you have a chance of defeating an overpowered unit.
Third, I'd suggest giving more starting gold so you can build up your army--if you decide to keep in the limited numer of troops you can have. I'd suggest using gold to purchase new units to use in battle and/or powerups for your units; like enchanted weapons or spells that can kill all enemy units on the field, ect.
This does have A LOT of potential to be a great game, I just think the limited amy aspect really hurts it. If you take that aspect out of it I beleive this could be an epic game.