I have an idea you can work with.
A person in distress behind bars, which are coming out of breaking skin.
Perhaps with someone chasing after them in the background.

Perhaps the person should be ghoulish.

PM me, or get at me on myspace if you want to talk more.

Wait and do research.
Print out pictures and show your friends.
Do Hennas of it, and show your friends, see what they say.
Act like it’s real, so they can give you some serious input.
Don’t do big pieces, because your skin will grow, and they may stretch out and fade as you develop.