Angels and demons.

Okay, then please place a stone mine near the first castle, because otherwise you can only build peasants and archers. And move some of the monsters away, because they are guarding some object, and you can't pass. So you wonder if it's intentional or not :). Otherwise, the scenario is not bad, but at the end, it gets very confusing what to do, but then I figured out how to deal with it. And the swordsmen's barracks is just hanging there, you can't interact with it.

Added 1 minute ago
Also, make the forests a little smaller, or add roads through them, because in some places there are only huge forest clearings.