Want to keep finished pics, but not on my IPhone. How/where can I move them?

After you finish the coloring, it plays an ad then it comes back to your colored drawing. Click SAVE then the little picture icon and when the word save appears in tiny letters at the top you saved it to Photos. Then click the movie icon to save the animation. Connect iPhone to computer with USB cord then download your photos to a file on your computer. Then you can delete on your phone. Look up how to save to computer using iTunes online. Look up how to create a file folder if you don’t know.