Vintage Engraved Book Cover with Duality Theme

[Theme]: {Core concept or symbolism} [Subject A]: {First subject} [Subject B]: {Second subject} [Relationship]: {Opposition, balance, interlocking, or coexistence} [Book Title]: {English title} [Tagline]: {Short literary sentence} [Author]: {Fictional author name} [Accent Color]: {One subtle highlight color} [Aspect Ratio]: 9:16 Create a striking literary book cover combining intricate vintage engraving, scratchboard illustration, and sophisticated negativespace design. Composition & Duality Build the composition around two contrasting yet interconnected subjects. Use bold blackandivory silhouettes, shared contours, interlocking shapes, and figureground reversal. Create dynamic tension through opposing movements, sweeping curves, and asymmetrical balance. Both subjects should feel like parts of one unified visual structure. Engraving & Details Use exceptionally detailed fineline engraving, rich crosshatching, and layered grayscale shading. Render feathers, scales, fur, branches, or other relevant textures with precise, directional strokes following each subject's anatomy. Concentrate intricate details around focal points while preserving clean negative spaces. Strong silhouettes from a distance, exquisite details up close. Color & Atmosphere Use deep black, warm ivory, and layered charcoalgray tones. Add a tiny amount of the selected accent color to one meaningful detail. Maintain a dramatic, mysterious atmosphere with refined matte print texture. Typography Design a complete literary book cover featuring: An elegant serif tagline at the top. A large, expressive italic serif title integrated into the artwork. The author's name in uppercase serif lettering. A small "A NOVEL" label at the bottom. Ensure accurate spelling, beautiful typography, and clear visual hierarchy. Final Requirements Create a visually powerful composition with opposing forces, intricate engravings, and elegant editorial design. Output one complete, flat 9:16 book cover, without mockups.