Eco-friendly gymnasium, natural ventilation systems, large windows, abundant daylight, solar panels, green roofs, recycled materials, low-carbon footprint, energy-efficient lighting, motion sensors, LED fixtures, sleek modern architecture, curved lines, minimal ornamentation, open spaces, wooden flooring, acoustic ceilings, sound-absorbing panels, sports equipment, basketball courts, running tracks, exercise areas, soft natural light, shallow depth of field, 3/4 composition, panoramic view, realistic textures, ambient occlusion.