task add subtle human activity to make the scene feel alive and natural instructions add two children playing with a ball on the cobblestone street position them in the mid ground not too close to the camera show a simple natural interaction passing or kicking the ball ensure realistic scale and proportions add a single ball on the pavement clearly visible ensure correct shadow and contact with ground integration match lighting color and shadows with the scene ensure children blend naturally no cut out effect maintain perspective consistency with pavement style calm everyday residential life natural not staged subtle and believable constraints do not modify architecture do not change camera do not overcrowd the scene keep composition clean reinforcement scene should feel lived in but still calm and minimal focus on realism and integration avoid exaggerated motion or unnatural poses
