Unbreakable bond, yes, but such a bond shouldn't be chained. I'll rate it a 7, despite the fact that it gives me a negative feeling, but that's personal. To me this photo says quite the opposite of what you probably meant.
Chain prop too big and obviously deliberately wound around. Perhaps if it had been smaller, wound a little more loosely, with some draping to it. I absolutely LOVE the idea behind it, but it doesn't make me think metal, it makes me think of my kids. Perhaps better suited to a topic concerning love, bonds, etc.
I think this would have more appeal if the lighting didn't appear to come from an onboard flash. In a way, maybe it's just me, the chains feel more like shackles than bonding. Perhaps if it was an image of mutually grasping of the chain?