Mood: The mood of the video appears to be soothing and calming, with a hint of sadness and intimacy. The theme seems to revolve around a mother-child relationship, with a focus on the emotional bond between them. The use of the word 'Lullaby' suggests a gentle and comforting tone.

Environment: The setting of the video appears to be a dimly lit, indoor space with a window in the background. The atmosphere is cozy and intimate, suggesting a private moment between a mother and her child.