It made me remember my days playing Age of Empires. I liked the idea, the sound effects, and artwork. It has a lot of potentials.
The movement through the map is a bit tedious and confusing, a minimap could be helpful. Sometimes it is hard to select units, mostly when you want to choose them in groups. I think better UI feedback for units movement is a need. It was especially hard to send them upwards. Having enemies guarding resources at the beginning of a level slows down the progress, maybe if you give more resources to the player removing the need for fighting could lead to epic battles near the end of the level.