Create an image of a skinny, sickly dog. This dog has thin, jagged fur and looks very weak. He was wearing a tattered shirt that looked like it hadn't been replaced in a long time. His face showed fear, his eyes were sad and worried, clearly showing fatigue and despair because he had been starved for many days. Scenes and characters should be drawn in Pixar's 3D animation style, with vivid colors and expressive character designs. The background of the painting is a shabby and gloomy neighborhood, creating a feeling of sadness and loneliness.