The video shows a person's hands as they paint a watercolor picture of a glass of lemonade. The glass is filled with lemonade and has a straw in it. The person uses a paintbrush to add details to the picture, such as the reflection of light on the glass and the texture of the lemonade. The colors used in the painting are bright and vibrant, with yellow and orange hues representing the lemonade and pink and red tones for the straw. The painting is done on a white background, and the person's hands are visible as they work on the painting.