Double page spread research

All the pictures below are very good examples of double page spreads. They  all follow most of the page furniture and layout plans for the page to be classed as a double page spread. As you can see, some are more professional than others and some are quite amateur like but still look good. The pink one in the top left is done by a fellow media student and could do with some work but still follows the basic features of a double page spread. The one with the big "L" is done by a professional magazine company and as you can see, it looks a lot more professional than any of the others, most of this is down to the very good picture quality.