**single-seat sofa, design drawing, beige, lumbar pillow, wooden integrated framework, central complete image, structural diagrams, high-quality fabric, warm and comfortable, soft filling, removable waist cushion, additional support, solid wood material, eco-friendly varnish, natural wood grain, elegant curved legs, front view, side view, top view, cross-sectional diagrams, production guidance, assembly instructions, visual appeal, ergonomic design,4K** - Upscaled by <@1029230255786967080> (fast)
singleseat sofa, design drawing, beige, lumbar pillow, wooden integrated framework, central complete image, structural diagrams, highquality fabric, warm and comfortable, soft filling, removable waist cushion, additional support, solid wood material, ecofriendly varnish, natural wood grain, elegant curved legs, front view, side view, top view, crosssectional diagrams, production guidance, assembly instructions, visual appeal, ergonomic design,4K