Maybe I am not qualified to give critique on this subject but you do have them in the critique section so ere goes.
I would agree with the above that there is too much space around the subjects in the shots with the trees but that is your choice, I am sure you see them different to what I see.
The big thing for me is your white balance looks way off. Looking through the pictures I see many different shads of white or off white in the brides dress. Even in the three side by side by the trees the colour is different. I am sure the bride would spot this as colours are something they put a lot of thought and effort into. You might want to adjust this, it can be a quick fix in PS but much better to get right in the first place.