In the video, Mark Smith provides feedback and suggestions to Nancy on how to improve her Airbnb listing. He suggests that she should retake some of her photos, particularly when there is more sunlight. He also recommends that she check out the "Complete Guide to Hosting" on Airbnb, which provides tips on setting up a listing, improving photos, and telling a compelling story. He advises her to consider her insurance situation, especially since she has horses and is offering a farm stay. He also suggests that she might want to consider a farm policy. He recommends that she disclose the speed of her Wi-Fi, consider whether she wants to allow one-night stays, and ensure she has a carbon monoxide detector. He also suggests that she might want to adopt a fully flexible cancellation policy to encourage more bookings. Finally, he advises her to create a guidebook for guests and to consider charging an extra fee for pets.