They all appear to be underexposed on my monitor...
As far as composition and framing is concerned:
1. I am not a huge fan of this pose. It's nice that she's making eye contact with the camera, but it looks like the man is either dead or asleep.
2. Same goes for this one, the female is making direct eye contact with the camera, and the man is looking off into the distance. His head is also way too far towards the edge of the frame. If this were to be printed, I'd expect part of his head to get chopped.
3. A nice shot of the ring, however the moment is lost due to it being out of focus. The guy is facing away from the camera, and makes it less impactful.
Do you have any photos where they are both looking at the camera? Or any other photos at all?