Mood: The mood of this video appears to be celebratory and joyful, with a focus on a birthday wish. The use of bright colors, oversized sunglasses, and a cheerful expression on the man's face contribute to a lighthearted and playful atmosphere. The theme seems to be a fun and festive birthday message.

Environment: The setting appears to be a colorful and lively indoor environment, possibly a party or celebration. The blurred background with multicolored shapes suggests a festive atmosphere, but the exact location is unclear.