Sorry this is late but I just came across that great photo of Queen Elizabeth and the various comments.
I certainly think that there should be some category covering ship's activities in ports (after all, the purpose of most commercial ships is to load & discharge their cargoes - including passengers!) and the current standards for Harbour overview don't allow photos showing a closer look at such activities. Perhaps have a category for "ports & harbours" with "harbour overview" as one sub-category and another for "ships' activities in ports" or some-such for photos like that of QE