Mood: The mood of the video appears to be melancholic and introspective, with a hint of sadness and longing. The theme seems to revolve around heartbreak, loss, or disappointment, as suggested by the title 'Loser'. The overall emotion conveyed is one of vulnerability and possibly regret.

Environment: The setting of the video seems to be an outdoor location, possibly a cityscape or a park, given the blurred background. The focus is on the close-up of the man's face, suggesting an intimate and personal moment. The environment seems calm and serene, which contrasts with the emotional turmoil that the man appears to be going through.