For those works, I cannot say one is better than the other because their advantage depends on the function. Some are more suitable for books, while others better for posters. I have my own preference, but it does not mean that’s the best design.
Meanwhile, I prefer simple designs. During the process, I usually added too many ideas into one page, which was a mass afterwards. Then I realized that sometimes, design is a combination of numerous traditional elements and a little bit astonishing innovation.