Mood: The mood of the video appears to be introspective and sentimental, with a theme of personal transformation and the impact of a parental figure on one's life. The use of the word 'CHANGED' in yellow highlights the significance of this transformation.

Environment: The setting seems to be a casual, indoor environment, possibly a living room or a studio, with a warm-toned background. There is a poster or a photograph behind the person, suggesting a personal or professional space with some memorabilia or inspirational materials.