Eco-friendly gymnasium, natural ventilation systems, large skylights, clerestory windows, recycled rubber flooring, sustainable wood accents, energy-efficient lighting, solar panels, green roofs, living walls, organic shapes, curved lines, modern minimalist design, spacious open areas, athletic tracks, basketball courts, volleyball nets, exercise equipment, motivational quotes, inspirational posters, calm color scheme, soft natural lighting, shallow depth of field, 2/3 composition, realistic textures, ambient occlusion.