We require functionality similar to www.hotornot.com.
-Users can submit images with login or anonymous.
-Users are "required" to put a watermark on each image submission. The size and shape of the watermark is variable, determined by the user, and can be placed anywhere on the image. A copy of the image will be saved with and without the watermark. The image will be auto-resized to a standard size.
-Users can browse image submissions and vote (yes/no). Images should not be repeated when browsing.
-Users can report content to admin.
Thats a quick recap of what is needed for the site.