Very creative idea, and the art style was lovely. However, I couldn't make out what the icons meant. I ended up guessing and was pretty successful... but some hints or clues as to what those mean would be helpful. Or just make them bigger, use some of that tree space.
Also wonder if it would make sense to need less cards for the first people, make it harder as the game progresses. Or maybe a specific order that the cards need to be played. That said, I liked the game, nicely done!