Without seeing the image, I can infer that if the image is related to the victory at Saratoga and the involvement of France, the conclusion that is best supported might be:
France formed an official alliance with America during the war.
The victory at Saratoga was a significant turning point in the American Revolutionary War that helped persuade France to formally ally with the American colonies. This alliance was crucial to the eventual success of the American forces against Britain. If the image contains references to troops, flags, or celebrations related to this alliance, it would further support this conclusion.