Waterfront boathouse, international style, curved rooflines, wooden accents, nautical elements, sailboat-inspired design, rustic wood decking, rope railings, porthole windows, copper cladding, weathered steel roofing, modern minimalist interior, open-plan living area, floor-to-ceiling glass walls, panoramic lake views, soft warm lighting, shallow depth of field, 1/1 composition, realistic textures, ambient occlusion.