The video shows a person's hands using a paintbrush to apply paint to a piece of paper. The paper has a drawing of a fish with a rainbow pattern on its body. The person is dipping the brush into a bottle of blue paint and applying it to the fish's body. The brush strokes are deliberate and careful, ensuring that the paint is applied evenly. The person's hands are steady, and the brush moves smoothly across the paper. The blue paint stands out against the white background of the paper and the colorful pattern of the fish.