Cheerful or happy atmospheres, sunlit fields, clear skies, peaceful environments, symmetrical compositions, vibrant and pastel colors, serene landscapes, cartoonish or comical styles, minimalist designs, sharp angles, abstract or avant-garde art, explicit or disturbing imagery, explicit nudity, aggressive or violent poses, excessive darkness, grotesque or macabre elements, excessive detail or clutter, monochromatic or desaturated color schemes, realistic or gritty art styles.