12 splash screens for the GIMP.
Create the directory ~/.gimp-2.8/splashes and move/copy the extracted package into it. GIMP will pick one at random.
If you want to use just one of the splash here provided:
Back-up the default image:
# mv /usr/share/gimp/2.0/images/gimp-splash.png /usr/share/gimp/2.0/images/gimp-splash.png_backup
Move/copy one of the images to the previous directory with the name gimp-splash.png.