I love it +Dave Beckerman
, and don't agree with your back of the buick assessment, lol. I love the shades and the muted, toned down effect, I think it lends a nice dreamy quality to the photo, like someone daydreaming about taking a walk with their love. +Richard Ericksen
, your very saturated version is very pretty as well, but it has an entirely different feel to it. To me it is oversaturated - yes the colors pop now, but there is so much vibrant popping going on that the eye doesn't know where to go first. In Dave's toned down version, the couple is a focal point, and the photo becomes a story about them. In the very vibrant, saturated photo, the colors are so strong that they compete with each other. Everything is brilliant, calling attention to it all, all at once. The white/gray space, then, becomes a focal point because it is the only area that stands in contrast. If there were more kids playing right there in the middle of that concrete square, or something else happening there to focus on, that saturated theme would be a great setup for that focus.
Of course this is all just my own subjective feeling :)