Your daughter-in-law is a beautiful young lady and you have done well with these images. They could be brightened up a little in post processing and that would make them even better IMO. My favorite is #1.
Great job. I'm torn between #1 and #3. She has a beautiful smile either way: I guess it depends how she wants to be seen: more exhuberant, or more reserved?... I agree with Gordon that you could bring up the levels a little more and they would be stunning. Great job, Rex!