If anyone finds the Civ 5 main menu a bit dark and dreary. You're not alone. So I've modded in a fix.
This ONLY effects the main menu you see on launch, the sub-menus will remain unaltered: the main goal of this being to change this up a bit, and to show off some of the art the excellent artists at Firaxis have made.
As well as some of our modders
You can swap between various background with the arrows at the bottom, or leave it un-ticked: then the game with choose a random background every time.
This mod should be installed like other Pseudo-DLC (EUI and custom modding screens). Simply extract to your DLC folder and boot up the game. Do not use this if your screen-resolution is less than 1280 in width.
Sukritact's Main Menu 1.0
Modifies the Main Menu to show off artwork