Mood: The mood of the video appears to be nostalgic and melancholic, with a hint of romance. The blue background with snowflakes and the presence of a microphone suggest a musical or poetic theme. The overall emotion seems to be calm and reflective, inviting the viewer to immerse themselves in the music.

Environment: The setting of the video seems to be a snowy, possibly hill station or mountainous region, given the title 'Blue Mountains'. The presence of a church or cathedral in the background suggests a European or a hill station in India with a colonial history, such as Darjeeling or Ooty. The environment appears to be serene and peaceful, with a focus on the beauty of nature.