Gotta agree with PinkClown on this - of course, it makes a difference depending on the message you want to convey. What was it that caught your eye in the first place? If it was the rust on the chain - crop in tight on the rust - if it was the was the chain looked in its environment, then you need to look for a composition including the environment that conveys that feel.

I took the liberty of cropping your existing shot to give (at least my idea).

Wolf