Time to start storyboards and story detail.
The opening shot will be on the character Ecarlet (the red poodle). He is the eldest of the four dogs and serves as their leader.
Their life before Waterloo is based on being in that "post-war" mode where everything is wrecked, but just beginning to return to some sort of normalcy. They are scouring the countryside, practicing how they will look for and identify the wounded (which was their job in the French Army, until the Battle of Nations at Leipzig).
At a distance, the French countryside should appear lush and beautiful, but, up close, ruined and ravaged and abandoned and destitute.