The video features a person painting a picture of a mermaid. The mermaid is depicted with a purple hat and a green tail. The artist uses a brush to apply watercolor to the picture, carefully filling in the colors and adding details to the mermaid's tail. The painting is done on a white surface, and the artist's hand is visible as they work on the picture. The video captures the process of painting, with the artist's brush strokes and the gradual development of the mermaid's image.