I wouldn't mind seeing them a bit bigger...to get a better look at them.
The first one has a few issues that I see. Firstly, you cut off the girls feet and there was/is room above them. Secondly, the guys poses are a bit too casual...if their feet were together, you could have avoided the awkward space between their legs.
#2 looks like a nice moment...but I wonder why you would include the scenery when it's rather yucky looking. If you cropped this one very close, only showing their heads and torsos, it would look nice and the green foliage would be a nice background. As it is, the sparse ground vegetation really stands out.
#3 is much better. The belt/ribbon being in color is a neat effect...but being the only thing in color, it distracts some attention away from face of the bride.