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I like his photo because it uses the framing of a cool stone arch to frame the picture of the tower.
autumn yellow, photo by Absolutely white
Rule of Thirds Tut by JohnnySix.deviantart.com on @deviantART
Basic Composition Rules by ~lucuella on deviantART:
Photoshop Actions White Negative Space Photos Composition Creative Elements
10 Simple Composition Tips for Taking a Good Photograph « The Secret Yumiverse
100 Awesome Web Development Tools and Resources - infographic