Image cleanup and colorization for old photographs

It's convenient that a grainy image can be cleaned up and even colorized with a simple prompt. Artifacts like print-through from the back of the photo could also be fixed with simple instructions. The image is a scene from the hit commemorative appreciation party for '{argument name="event name" default="The Strongest Karate on Earth"}' on {argument name="date" default="June 24, 1976"}.