I love the idea of this game, I think it's a great way to flip a classic game idea/genre upside down. The music and sounds were nice, I loved the little campfire particles and all the cute little models. I agree with what the other comments have said about how it'd be nice to have more influence over what your troops do or where they attack, it was hard to feel like I was making progress. I think there was also text over the big red cube, I'm guessing that was the enemy king? I couldn't see any health bar for him?
And above all, congratulations on finishing something and submitting it, there is always room for improvements, but actually making something is how you get better and learn :)