I commissioned some pixel art which I will provide to you for this course, however once you're on your own you'll need to know how to find 2D assets to use in your Unreal Engine games.
Sadly the Unreal Engine Marketplace doesn't feature many good 2D assets, however you can find some good content on itch.io and opengameart.org.
I created a YouTube video talking about all the different places where you can get your assets, which you can find linked in the resource for this article.