Luxurious boathouse, serene waterfront, rippling lake waves, majestic marble cladding, elegant columns, sophisticated arches, opulent interior design, lavish furnishings, warm ambient lighting, 3/4 composition, shallow depth of field, natural stone flooring, wooden accents, nautical themed decor, floor-to-ceiling windows, sliding glass doors, breathtaking lake views, sunny day, soft warm glow.