Ugly, low-quality, kitsch, watermark, signature, words, blur, haze, nudity, nsfw, unrelated objects or characters, overly simplistic design, abstract elements, excessive negative space, dystopian or post-apocalyptic themes, pen and ink, illustration, multiple people, floating objects other than the teapot, opaque objects, solid objects, anything that doesn't allow light to pass through it, ninjas, Ninja Turtles, green color, the Ninja Turtle Donatello, any reference to the fictional character Donatello.