Taxis vary as do taxi stands...
Oops!
Fahim,
I thought at first this was about the Vaporetto! (I'd like to see a new picture, if you have it, with the people waiting for the Vaporetto and more of the station and the top of buildings in the distance. For sure you have more!)
Now let me look at the b.g.
To me it seems that the taxis need to be more important. I'd crop away
[*]On the left beyond the 3rd white pole and the wall
[*]On the the right side beyond the first two window pains on the left
[*]Below the angle in the bend of the white drain pipe on the left lower portion of the station.
[/LIST]
Now, we have made the image more about the water taxi! I'd now brighten that part of the image, including its pretty reflection in the water, and increase contrast, so it stands out. You might pull back on the sharpness and intensity of the Vaporetta station, if that's indeed what it is!
Asher