Atoll (itch) (Pengrite)

Your are the God of Earth. Humans have settled on your island.  Change the terrain of the island to satisfy their interests.

Every turn, you get 3 random tiles (It could be Forest, Desert, Mountain). Every tile gives a unique way to gain or lose points. *see in  the 1st screenshot*. Place these terrain tiles carefully, because mistakes can't be covered up and cost you many points.  After 8 turns the game will end and you will be able to see your score. (My record is 24)