If you are familiar with Adobe Illustrator, then in less than 2 hours you can learn to create 2D game backgrounds. You will learn the correct structure, proven workflow and the mindset while creating a 2D cartoon type game background.
Learn how to create the game background by blocking, breaking down the background in small areas and then fully completing it. No intros to the many tools so you will need to be an intermediate CS4 or above user.
Access this course on Zenva Academy