Bokeh with Canon's cheap 50s is extremely distracting. I'd advise trading up to an 85 or Sigma 50. Also..don't be afraid to back off a little. Some of what I feel are my best engagement shots are ones that show the couple in their own element, not posed and camera-aware.
I agree with the other posters, the bokeh is not very pleasing to the eye. You will need to blur the background in all of these pics. For your second pic, you will have to try hard to keep the viewer's eye on their hands. I did a quick and dirty edit in PS for the second pic.
I desaturated and blurred the background. The transition from colors can be smoother, and you will have to fix the original's problem of not having continuous colors in the hands.
Yeah sorry man but that selective color effect sucks hard