It's a cool subject, I like photos that convey a story or a deeper meaning. This one technically though doesn't really perk my interest. I guess it looks too much like a snapshot. Perhaps a lower perspective or maybe moving the sign off center.
I would go for a much tighter crop, so you only include the bins the sign and the squirrel. And if your into manipulation I would be tempted to move the squirrel to bottom of the image - so he looks closer.