I thought I'd upload up a few images to Canstock after reading some of the post here and I have to tell you I am disappointed after a "first" attempt. I've been doing this since 2005 and know what is required. I uploaded 3 of my recent images that have been selling very well at the other major 4 and then I get this reply: "The images you submitted are not high enough quality to be approved for sale. Stock Photography buyers expect to receive a professional quality, flawless image. There are several problems that we typically see that are apparent in your images: image noise, exposure problems, imprecise focus." Hello? ...I asked to have my account closed.