Mood: The mood of the video appears to be heartwarming and sentimental, with a focus on the special bond between a child and their mother. The theme seems to revolve around the importance of a mother's love and the innocence of childhood. The overall emotion evoked is one of nostalgia and warmth.

Environment: The setting of the video seems to be a casual, outdoor location, possibly a school or a residential area, given the boy's uniform. The presence of colorful balloons and a moon with a face suggests a whimsical and dreamy atmosphere.