B&W or Color?

I'm building a slideshow of our trip to Venice, and it has about 100 images, running 14 minutes. It's about finished, but unfortunately, I'm sorta stuck on this one image. My wife and I disagree about whether it should be b&w or color. I may do some further post processing and cropping, but right now, while I hate asking, I'd like some opinions on what works better. Thanks for your thoughts.

-Richard



canal bridge

canal bridge 2