Composition Assignment.

Here is the Composition Assignment.
This photo is following the rules of thirds.  The subject is not in the center, the focus of the subject is where it needs to be.  The subject here does not necessarily need a head room, but it also does have the appropriate mount of headroom to it. The field of depth isn't really noticeable but it is.  The boat in the back is blurred out a little bit, while the subject is in focus.  and finally the balance of elements, the main element is the dock.  The dock is to me, the balance.