Kings and Conquerors: The Hellenistic Era is a total conversion mod for Rise of Nations: Thrones and Patriots that aims to bring the Hellenistic period to life.
The terrain in this picture is from Azangara's Terrain: Flora and Fauna mod, which you can get here: Moddb.com
The shader effect comes from GustavoUlate25's ENB mod, which you can get here: Moddb.com
Finally