I really like the idea of a monthly event where we post pictures, just for the fun of it, but I'd suggest we have no rules as to the composition (except it has to be decent).
We all love to see pictures of each other's Playmo, but not everyone is into historical or fantasy Playmo. If we had a new thread started each month by a moderator, "March Photo Thread" etc, and people who wish to (I hope everybody active on the board) just post a single picture with no comment or text, I think that would be very interesting.
Leaving it open leaves scope for camera trickery, or human/klicky interaction, or, well anything.
It's tricky to keep momentum up, my Fred & Maisie theme got a few people involved, but even I forgot my F&M figures on occasion, and have F&M shots in the camera still unposted.