Although there is much pleasure to be derived from taking a technically excellent photograph, there is a strong argument that a truly great shot depends most on your eye.
Look at the photographs you see every day in magazines, the press, or on display in a gallery. The shots you really take note of are the unexpected–the ones that catch a moment that could have been unnoticed and missed forever. See: http://www.picturecorrect.com/tips/developing-your-eye-for-photography/
