As is often the case on a vacation/sight seeing with a camera, we are cursed by the conditions of the day and the moment.

I think Inshaala is right about the vanishing point - we're led into the shot just great, but then our lead goes off the page ;-)

Along Girsempa's POV, I was at first amused - looking at the contrast between the teeny boat and the cruise ships all that came to mind was "Someday... I'll be a BIG boat and they won't laugh!" What might have sold it well is if you could have gotten a vertical shot of the little boat at the bottom left and a WALL of cruise ships blocking the right side of the shot. Again - the day and the moment frequently comes to the conclusion of "unnattainable for now".

If you wanted to have a manufactured image (that would achive the notion I just mentioned) you could move the teeny boat under the middle cruise ship and do a vertical crop - framed by the left and right sides of the cruise ship (cutting out all adjascent ships). A little head and toe room and you have a powerful shot of a mouse under a gorilla.

As far as the second shot, this is the crop that I ended up with. Would work better with a more interesting sky but -- "conditions of the day". You're there when you're there, and that's sometimes all you can do.

Good luck-
-Lew ;-)