火山地貌竖版观察海报

Create one standalone 3:2 landscape image: a tall editorial poster with one volcanic cone, lava textures, ash layers and a tiny observer for scale, no text. Visual approach: one point perspective. Keep a single coherent scene with crisp material edges and believable spatial relationships. No collage, no grid, no logo, no watermark, and no readable text.

生成一张独立的 3:2 横幅图像：竖版编辑海报，以单一火山锥、熔岩纹理和灰层为主体，小观察者提供尺度，无文字。视觉方法采用单点透视。保持单一连贯场景，材质边缘清晰，空间关系可信；不要拼贴、网格、标志、水印或可读文字。