I thought it bad enough when my kids (including your eight year old) picked the technical faults in photos on walls, magazines, newspapers etc etc (gee look at the ca in that!). then they progressed to artistic and composition faults, now when they are out they will stand tell and you how a photo hung on the wall could be fixed or improved. (hard reviewers on stock, try my family

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Now its sad that when I go to my local shopping centre (in a small country town in australia) I recognise the photos on the centre's display boards and can name the photographer...
Phil