"Awaiting" text below the images under moderation

I manage a photocommunity where we apply a screening process before publish the images. Almost all users are confused by the fact that they see the uploaded image in their personal galleries but they don’t have a direct way to understand if the posted picture has been moderated or not. It would be very usefull to have a text like “Awaiting for screening” under the pictures not published yet. Do you have any idea how to do that? Thanks I also opened a ticket about this improvement but I wanted also to know the community opinions