Large open windows, operable vents, solar chimneys, clerestory roofs, green roofs, natural convection systems, cross-ventilation designs, airy atriums, high ceilings, exposed ductwork, minimal mechanical systems, earthy color schemes, organic materials, bamboo accents, reclaimed wood features, living walls, lush greenery, abundant daylight, soft diffused lighting, warm ambient temperatures, comfortable humidity levels, serene atmosphere, 3/4 composition, shallow depth of field.