There may not be enough variety in the information provided. Or there may be too much information which is not interesting or useful or relevant to the brochure's theme. Brochure needs little or no editing or revision. In an excellent brochure the overall appearance of pages is pleasing and contributes to understanding of the content. There is a nice balance of easy to read titles, text, colors and graphic which results in a pleasant and comfortable reading experience.
Graphic elements contribute to the experience without being cluttered or confusing.
Or pages have a different look and feel and it is not clear that they form part of an organized set to accomplish a goal. The layout of most pages are simple enough to follow the information. Titles and fonts are ususally appopriately used. Most pages follow the same or similar design. The layout of most pages is clear and easy to follow, and follows a consistent design theme.