Drum Beaten

Some of my Drum Castle photos were rejected by Stock Exchange for a variety of reasons, from "we're not looking for such images now", to "subject not visible", and when the subject is visible, rejected as the people may have been protected by copyright/trademark, eg celebrities. I sent them this email:

What, ho, Admin_Crew. I'm new to this, but a recent historical re-enactment series of photos have been rejected for the long reason of containing...etc, celebrities.  These are re-enactors, not actors.
http://aktoman.blogspot.com/2007/09/drum-castle.html
Can you advise if there's a difference.

Especially as the civvie one there has been downloaded 79 times and scored 9/10 rating.

Thanks in advance, as I'd just like to know so I don't make the same mistake next time. Eg, posting photos that the Admin_Crew "aren't looking for". If it is just civvies, and nothing recreating military history (understandable, as where do you draw the line at that), then I could take some more of them next time.

Keep up the good work, and I hope to rise to the challenge

And they're not interested in artillery!! How could people not like artillery?