Hello! I think best game in this jam! Really good game! It made me to go until end and enjoyed it! Probably needed a lot of programing and design, great job!
But this is funny that at first I though game has a problem or not completed and I just closed it and when I saw the images here then I tried again.
At first you should have a dedicated place for each element and show the player where to click to get the tower.
And I placed 2 fire towers and then in the second wave I could still place only 2 towers and that made me think the game has a bug, but then I realized I didn't have enough favor.
All the combinations and strategies are well designed. Maybe add a retry button to reset the level so when something goes wrong we don't need to wait until we lose.
I liked the full Air strategy: :D