A graphic design is a one-of-a-kind drawing or photograph that has been digitalized and manipulated with computer software to look a certain way. I make a point of never making the same two images/posters. You can use graphic design for anything. They can be stock photos, curated content for you (email for more info), logos, infographics, interest posts, t-shirt mockups, Instagram posts, Facebook images, Facebook banners. Once purchased, I hand all rights to that image to the prospective buyer, and the ability to watermark your photo and a .zip file with multiple formats. This now becomes YOUR property. (works for NFT as well)
Also, one-of-a-kind logos for you. That fits your style.