Mountainous penthouse, luxurious living spaces, floor-to-ceiling windows, breathtaking mountain views, green roofs, lush vegetation, native plants, solar panels, eco-friendly materials, sustainable design, energy-efficient systems, rainwater harvesting, grey water reuse, natural stone walls, reclaimed wood accents, minimalist decor, warm neutral tones, cozy reading nooks, panoramic views, shallow depth of field, 1/1 composition, soft warm lighting, realistic textures, ambient occlusion.