ugly, deformed, noisy, blurry, distorted, grainy.
Ensure that the illustration does not depict any incorrect posture or uncomfortable seating positions. Avoid showing any elements that could imply strain, discomfort, or lack of proper support in the chair. Exclude any distracting or overly complex details that could detract from the clarity of the illustration. Do not include any bright or jarring colors that might create a sense of unease. Lastly, avoid any clutter or excessive elements that could overshadow the focus on the chair and the person's correct posture