Actually a pretty fun tower defense game. The music's nice, and the gameplay solid.
One thing I definitely think would be good to include in the game, instead of just the description, would be a visual tutorial of how the game is played, and what each tower/building does. Helps give new players an easier time figuring out how the game is played. You could even make sure that the tutorial is skippable, so that new players have a tutorial, and more experienced players could skip straight into the gameplay.
Other than that suggestion, well done! This game definitely seems well put together.