This process can be frustrating sometimes and you may not always agree with the reasons that are presented to you, but keep in mind, that your portfolio looks a lot better without unnecessary files that don't sell. The moderation helped me personally, to improve the quality of my own portfolio over time! Stay patient, read the reasons for rejection and avoid them the next time.
The second half is crucial to the success your file will have on the agency's marketplace. Of course I'm talking about keywording your work correctly. Without the right title, tags and description no buyer will find your work in the large pool of already existing stock data. There are no sales without good keywording!
You have a thing for cameras and good photography, but have nowhere to sell your pictures? Well, then it's a clear case - start photographing right away or select your best work from the countless files on your hard drive.
Step 1 of The Microstock Beginners Guide
The Microstock Guide 