The video features a person's hand using a paintbrush to add color to a drawing of a fish on a wooden surface. The fish is drawn in a realistic style, with attention to detail in its scales and fins. The artist uses a variety of colors to bring the drawing to life, carefully applying each stroke with precision. The wooden surface provides a natural and rustic backdrop for the artwork. The video progresses through different stages of the painting process, showing the artist's technique and the gradual development of the fish's appearance.