In the video, a person is seen drawing a realistic image of a glass of water with a straw. The artist uses a pencil to create the image, carefully shading and detailing the glass and the water inside. The straw is drawn with precision, and the shadow of the glass is also depicted on the surface below. The artist's hand is visible as they work on the drawing, adding depth and dimension to the image. The video captures the process of creating a realistic drawing, showcasing the artist's skill and attention to detail.