Diego,
I find your BW version quite stunning. I think if you were putting together a color exhibit, you should go with the color version. But if you were doing a BW exhibit, I'd definitely include the BW version. It may be my faulty color vision, but I find the BW version even more compelling than the color one. And they are both excellent.
As for my predilection for BW, it also comes from many years doing my own BW darkroom prints, since color work was so difficult, I would shoot some color slides and just send them to Kodak for processing. I never took color seriously as a photographic medium until I started dabbling in digital, and color became so much easier. (But friends told me that the "blue" skies in my landscape prints were really "cyan," which I couldn't see.)
Eric