Add your own image.
Open one of the three files in Photoshop, right-click on the layer Adobe Stock Image - Replace, and choose Replace Contents from the menu. Locate the image you want to use and click Place. The file will update with your image. (You can also double click the Adobe Stock thumbnail, place your image in the new window, save it, and update the animation that way.) Use the Move tool to adjust the size and position of your image.
Tip: Choose an image that you can comfortably scale to the same size as, or larger than, the Background layer, since the animation will reveal small portions of the photo above and below the main ink stroke within the small splatter marks.