отлупили с этим сначала
затем с этим
а собственно причин я не увидел, там стандартный ответ только
At this time we regret to inform you that we did not feel the overall composition of your photography or subject matter is at the minimum level of standard for iStockphoto. Please take some time to review training materials, resources and articles provided through iStockphoto. The photographs provided in your application should be your best work. Try and impress us, we want to see how you stand out from the crowd