Composition is when your girlfriend comes over and straightens up all your magazines, cameras, half disassembled motorcycle engines, shoes, books, dirty socks and sporting goods that you left all over the house.
All this junk makes perfect sense to you or me, but it makes no sense to the woman or anyone else who comes over. You or I know exactly why and where everything is, but it makes no sense to anyone else. The woman needs to organize it so she can understand it and so it looks pretty to her.
This is composition, and most men hate it. I know I sure do. That’s why our photos usually suck.
Like a dirty room, your photos always make sense to you, but they won’t make sense to anyone else unless you clean them up first.
A photo needs to make sense instantly to anyone who looks at it.
Ken Rockwell sobre composição na fotografia.