or christ like, just download one of the free art programs and spend a couple evenings making your own visuals. i have zero visual art skill to speak of and i still made a handful of the covers for my music and the background graphics for my bandcamp. theres nothing stopping you just DO
people have made compelling stuff with clipart and stock photos and plugins, random pics of their own, there's a million things to turn to before the labor theft button
not to mention the millions of license-free photos and art that you can just download and use, usually for free, and all you gotta do is credit the artist, if that! I also have no "real" visual art skill but you can still spend a day with a handful of images and a photo editor and Create Something!