Prompt: Depict Sam Weller, a middle-aged, slightly overweight character, sitting in the driver's seat of a taxi. He is portrayed without a shirt, capturing a moment of vulnerability. The image should convey a subtle sense of sadness in his expression, reflecting a poignant and introspective mood. The interior of the taxi should be detailed, emphasizing the personal and private nature of the moment. The focus is on expressing the emotional depth and complexity of Sam Weller in this unique and intimate setting.