Monday Mural: hidden faces

This large scale mural looks like a group effort but I didn't see any signatures.  I feel I should know the artists by the distinctive styles, but sadly I don't.  This is one of those images that invites free association to uncover meaning.  Maybe something about the need of street artists to stay anonymous?  You tell me.  The writing down the side of the wall says Rock Paper Scissors, the art collective whose back wall is the canvas.

If you like murals or have a mural you'd like to post, this meme's for you.  Just follow the Linky steps below.  You get to decide what constitutes a mural.  Once you start looking, you find them everywhere.  Be sure to link back to this blog and to visit your fellow posters.  Looking forward to the mural finds posted this week.