PLEASE MAKE MORE!!!
First, I'll start with just how much I love playing this game. I used to be an advid player of FF Tactics. This game is very similar in fashion except the graphics are way better. (your game)
It blows my mind to think that you created this entire game using flash. You are a genius.
My only real complaint is that you need more levels. I just want to play more of this, god, get a sponsor or something so you can focus all your time on this game.
I know this is only a demo but I think the final version should have options to create your own party of characters. The healer should be able to heal herself as well. Maybe factor in some elevation to the levels like small hills etc. Also you could add terrain like lakes, fire pits, plant life that is life threatening to your characters etc. A bunch of easter eggs would be cool as well. All in all I'm sure if you make a completed version of this game you'll do it right. You seem to know what your doing so keep up the good work!!!