Mood: The mood of the video appears to be carefree and joyful, with a theme of happiness and positivity. The use of the phrase 'Happy Happy' and the woman's smile suggest a lighthearted and upbeat tone.

Environment: The setting of the video seems to be an urban environment, possibly a city or town with modern buildings and architecture. The presence of a leafless tree and the woman's winter clothing suggest that the video may have been filmed during the colder months.