I sometimes think that catching a moment like that is what photography is all about! On a technical note it looks a little underexposed to me with the colours appearing saturated, but nothing that couldn’t be fixed in Photoshop.
The B+W is certainly clearer and conveys the emotions within the scene much better! I can imagine the woman on the right asking the other person..."i wanted to ask what you thought about taking the girls to Disneyland?"
I like the B&W better too... Try to be aware of the background clutter. Sometimes there's not much you can do about it, but there are ways to minimize it with shutter speed and apeture adjustment to reduce the depth of field.
I love candid photos like this! They capture moments in time that bring back memories of conversations and people we love.