TEH ROOLZ The judge posts a category, such as "music". Then, three people post one picture each of something related to the category. Once all three are in, the judge chooses the one s/he likes best, then the person that posted that picture becomes the new judge. Lather, rinse, repeat.
The first category is "red".
"Our hopes and expectations, Black holes and revelations," Starlight - Muse