A square, 1024x1024 professional audiobook cover art. The artwork depicts a stormy Danube river at dusk. Dark, turbulent water churns under a bruised, stormy sky with streaks of deep indigo and bruised purple. A lone, silhouetted figure stands on a weathered, wooden dock, facing away from the viewer, gazing out at the tumultuous water. The atmosphere is somber, introspective, and slightly melancholic, hinting at internal struggle and vast natural forces. The color palette is dominated by deep blues, grays, and muted purples, with perhaps a faint, distant light on the horizon suggesting a glimmer of hope. The style is painterly, with visible brushstrokes creating texture and depth, evoking a sense of classic literature and dramatic narrative. Focus on mood and symbolism over sharp detail. No text, no letters, no words, no title, no author name.