My ten suggestions for improving your photograpghy yesterday left out perhaps the most important suggestion, one that is key even for the most advanced artists--Learn to See.
Seeing is a photographer's most important skill. Regardless of content or style, it's nothing if not build upon a foundation of a vision of the moment.
If you have the opportunity please see the documentary "Henri Cartier-Bresson: The Impassioned Eye". His work moves me as much as any other.
"The simultaneous recognition, in a fraction of a second, of the significance of an event as well as the precise organization of forms which gives that event its proper expression... . In photography, the smallest thing can be a great subject. The little human detail can become a leitmotif." — Henri Cartier-Bresson