In #2 the couple are a bit heavy. They shouldn't be posed square to the camera. You could just as easily have had them standing and gotten the cross. Then you turn them and put the man slightly behind the woman so she covers him up. The square pose has its place, but not here, not with heavier people. You could even have used the bench as a place for the guy to put his leg and have the woman stand behind it to help hide some of her mid section, both turned off camera axis. A pop of Speedlight up the face of the cross might have been interesting to help separate it out. No. 4: classically you don't want to see the hand coming out from behind the back.