A professional audiobook cover illustration in square 1024x1024 format, evoking the atmosphere of early 20th-century Russian high society with a touch of melancholic elegance. The central image is a solitary, impeccably dressed woman from that era, seen from the back, gazing out of a large, ornate window. Her silhouette is sharp against the diffused, soft glow of a dim, late afternoon light filtering through the glass. Subtle reflections on the windowpane hint at opulent interior decor – perhaps a gilded frame or velvet drapes – but remain abstract and suggestive. The color palette should be rich yet muted, with deep jewel tones like emerald green or sapphire blue for her dress, contrasted with warm, golden hues from the light and hints of deep crimson or ochre in the background. The overall mood is one of quiet introspection, lost glamour, and unspoken yearning. The artistic style should be reminiscent of impressionistic or art nouveau influences, with painterly textures and a focus on light and shadow, creating a sense of depth and emotional resonance without any literal symbolism of fashion. No text, no letters, no words, no title, no author name.