Colleen Wainwright (aka The Communicatrix) says some really smart things about taking good photos.
A super smarty pants article from the NYTimes about confidence in judgements/decision-making The examples it uses are mostly from the world of stock trading, but all I could think of were auditions, script submissions, and other related theater stuff.
Money quote (if you don't have time for the whole article):
In general, however, you should not take assertive and confident people at their own evaluation unless you have independent reason to believe that they know what they are talking about. Unfortunately, this advice is difficult to follow: overconfident professionals sincerely believe they have expertise, act as experts and look like experts. You will have to struggle to remind yourself that they may be in the grip of an illusion.