In the video, a person is seen holding a piece of paper with a watercolor painting on it. The painting has a mix of red, orange, and green colors. The person then uses a black heat gun to blow on the painting, causing the colors to spread and blend together. The heat gun is moved around the painting, and the person adjusts the paper to ensure that the colors spread evenly. The person's hand is visible, and they are wearing a white shirt. The background is a white surface with some paint splatters.