The painting is a portrait of a brown and white terrier sitting on a white surface. The terrier has floppy ears and a long tail curled around its body. The dog is alert and attentive, with its eyes open and looking directly at the viewer. Its mouth is slightly open, as if panting. The background is a neutral, light brown color. There are no other objects or features in the background, and all the focus is on the dog. The brushstrokes are loose and expressive, particularly around the dog's face and fur. This gives the painting a sense of energy and life.