High-quality 3D model of a contemporary double-height living room interior featuring a sculptural staircase, modern sectional sofa, designer lounge chair, coffee table, decorative lighting, large floor-to-ceiling windows, and carefully curated furniture accents. Designed with realistic proportions, clean architectural lines, and premium materials, this interior scene is ideal for architectural visualization, residential design presentations, real estate marketing, animation projects, and high-end interior renders. The model includes detailed geometry and optimized assets suitable for close-up shots and wide-angle compositions. PBR-ready materials and realistic lighting elements ensure excellent performance across modern rendering engines while maintaining visual fidelity and professional presentation quality.