I just ran across this image. I created it way back when I was first learning how to create artistic effects with Gimp. I don’t know for sure because I didn’t save the working file, but I suspect that I created this image by starting with an image from a YouTube video, then blurred it a little bit, then applied the “oilify” effect to it one or more times.
P.S. — If you’re old enough, you can identify the pitcher and the batter, despite the Gimp artistic effects. :)