The video shows a person decorating a cake with green icing. The person is using a piping bag to create a scalloped pattern on the side of the cake. The cake is already covered in green icing, and the scalloped pattern is being added as an additional decoration. The person's hand is visible, and they are wearing a blue nail polish. The cake is placed on a white surface, and the background is a white wall. The video is shot from a top-down angle, focusing on the cake and the person's hand.