Avoid an overly cluttered or intricate design with excessive floral details. Do not use vibrant or intense colors that could distract from the textual elements. Do not position floral elements at the central part of the back cover, making sure they do not exceed the center. Refrain from including any objects, such as chairs or additional elements, in the central space, as it should be empty and clean to host the back cover's text. Ensure that the design conveys a sense of calm and serenity, providing ample space at the center to showcase textual elements clearly and legibly.

ugly, deformed, noisy, blurry, distorted, grainy