Peter, I was confused at first as well...the image was almost boat-free and not at all what I expected. Still, it goes past there several times a day so if I ever get the urge for a re-match...
and just for those who might never have seen the Twin City Liner, here it is once again trying to escape...
Andy
I like the technical bit of the first shot because the outta parts of the image aren't blown out.
Even at 5 secs. you have under the bridge & beyond.
The second shot is good also because I would buy that postcard if I was in Vienna. Great composition.