Mood: The mood of the video appears to be light-hearted and comedic, with a theme of pregnancy and possibly parenthood. The use of the phrase 'Whole Hearted Comedy... Pet Se!' and the title 'Mister Mummy' suggests that the video will have a humorous tone. The image of a man cradling his pregnant belly adds to the comedic effect.

Environment: The setting of the video seems to be a dimly lit room with a rustic or vintage aesthetic, as evidenced by the wooden wall behind the man. The presence of a chair and the overall ambiance suggests a casual, relaxed environment.