OK, looking at these purely from the POV of a retired wedding photographer ...
#1 is
exactly the picture I would have taken when we first started out. Then some kindly soul pointed out that it's a classic "Does My Bum Look Big In This?" shot, and could therefore put off a lot of potential customers. It would work a bit better with a little more foreground and less ceiling, but it would have worked a lot better if you'd moved her to her right and turned slightly to her left, and then twisted the mirror round a bit. That would have given you basically the same shot but without her being square on to the camera (therefore she would look slimmer) and you'd have a bit more separation from the wall light.
#2 is fine, but I'd lose the distracting head on the right by a simple crop (keeping the aspect ratio) and very quickly zap that loudspeaker ...
#3 and #4 - neither of these work for me, but as I was never into this sort of shot, I can't offer any sensible critique
#5 What's that in his right hand? And how come there's that shadow on the grille over the radiator? Whatever, again, not a picture I'd have taken but AFAIC it's fine for what it is.
HTH a bit