Luxurious penthouse apartment, floor-to-ceiling windows, sliding glass doors, expansive city skyline views, lush green roofs, living walls, vertical gardens, natural ventilation systems, energy-efficient design, minimalist interior decor, reflective surfaces, polished marble floors, sleek metal accents, abundant skylights, clerestory windows, open-plan living areas, airy atmosphere, soft diffused lighting, warm beige color palette, organic textures, 1/1 composition, realistic reflections, ambient occlusion.