Here is the latest installment of the secret picture. Last week's was the sign from the Alto Vista Peace Labyrinth and was guessed correctly by CK1. This weeks picture presented a bit of a problem as I couldn't figure out how to clip it so that it had the right balance of shown vs hidden. Hopefully I didn't make it too easy in the process, but that's one of those things that is impossible to tell until you actually get into it.
If you aren't familiar with the game this is a small section of a much larger photo, blown up to obscure its actual identity. When a guess is made that contains relevant info I will be sure to point it out.
EDIT: After seeing the clip I made I went back and reduced it further.