Elegant library exterior, curved rooflines, green roofs, natural stone walls, large windows, clerestory windows, open floor plans, high ceilings, wooden shelves, bookshelves, reading nooks, comfortable seating areas, soft warm lighting, natural ventilation systems, operable windows, solar chimneys, wind towers, shading devices, overhangs, atriums, inner courtyards, lush greenery, blooming plants, sunny day, shallow depth of field, 3/4 composition, realistic textures, ambient occlusion.