The pool should show straightforward photography so no negatives, heavy manipulations, light experiments, mosaics, montages, collages, computer graphics, borders, large titles or watermarks.
Images that don't fit the guidelines will be removed from the pool. If one of your images has disappeared you may find the explanation in the group description above. If you don't understand why your image has been removed please contact one of the admins by Flickr e-mail.