Choosing a book cover . . .

We're now in the final stages of editing and choosing how the book will look.  We've had several ideas for a cover and we're finding it difficult to choose.  We want something striking, but also an image that represents what the anthology is about.  Our book designer also wants an image that is good design!   These are the alternatives and there are pros and cons to all of them.  My favourite is the barbed wire, because if reminds me of amnesty, it's very simple and the coils of wire in the middle look rather like a hand clutching the wire.  My co-editors like some of the others.  What do you think?  We'd be delighted to hear.