Breath deep, my green-skinned sweetheart.
It's going to be all right.
If you got some big art going on, consider putting together a theme camp.
You might have gotten the impression that theme camps "have to" involve huge numbers of people and you "have to" provide food and licquor for whoever wanders by. That's not really the case.
My own theme camp in 2009 was staffed by no more than five souls.
If you can arrange something interactive that revolves around your art piece, and if it's halfway related to this year's theme, then you should be on easy street.
Selfishly, I am thinking that if you have a theme camp, more people will visit it and enjoy it because of more central placement.