Vibrant gymnasium interior, exposed ductwork, polished concrete floors, reclaimed wood accents, energy-efficient LED lighting, floor-to-ceiling windows, natural ventilation systems, green roofs, solar panels, rainwater harvesting systems, eco-friendly materials, minimalist design, open spaces, flexible layouts, moveable partitions, state-of-the-art exercise equipment, modern locker rooms, spacious showers, natural stone walls, abundant daylight, soft warm lighting, shallow depth of field, 3/4 composition, panoramic view, realistic textures, ambient occlusion.