On the left they look OK ... my feeling is however that they are too close together for the full length crop.  The look to stiff and bunched up.  Moving in closer to the right crop however makes them look less tight.  The closer crop means the tighter grouping works better.

This works better ... the man is taller than his wife.  He also looks thinner not sitting.  It is also slightly looser.

I think this works best.  They look less bunched up ... they are more relaxed.   They actually sort of did this without my asking.  They are all however in different poses.  If she had her hand in the pocket it would be weird ... it would also be bad for her to be leaning like him.

I would have liked her about 1 inch to our right to space out the people more evenly.