Naturalistic zoo enclosures, minimal ornamentation, sleek glass railings, open-air exhibits, rustic wood accents, earthy color palette, organic textures, free-roaming animals, lush greenery, natural light pouring in, subtle gradient shadows, shallow depth of field, 2/3 composition, warm atmospheric lighting, realistic animal models, ambient occlusion, subtle misting effects, educational signage, interactive displays, visitor seating areas, recycled materials, sustainable design practices.