BnW in my opinion rarely looks good. Only in fashion photos or something really good. To me BnW hides imperfections of color, is easier to work on and is sort of cheesy edit lots of people did when filters just started.
To me keeping color versions show your skills more. :)
If i had to choose one, i would probably take the bluish one, love the way it matches your eyes.
RE: One Picture - 4 Edits