Luxurious penthouse, modern green architecture, lush rooftop garden, tranquil water features, sleek metal railings, floor-to-ceiling windows, sliding glass doors, natural stone flooring, reclaimed wood accents, living walls, vertical gardens, eco-friendly materials, energy-efficient systems, calming color palette, soft mint tones, creamy whites, earthy browns, rich greens, sunny day, warm lighting, shallow depth of field, 3/4 composition, realistic textures, ambient occlusion.