Going from the first two shots, to the last one it looks like you tried to fix the exposure of the faces in those two in post rather than trying exposure compensation/bias.. second one kind of looks like that was done and then noise reduction attempted after as her face looks flat?
Would definitely get out of the camera's pre-set "action program" to shoot these. I don't mind the F11 that was used in the last one showing off the mountain behind your wife, I'd gladly want to take advantage of that scenery if it existed here in Minnesota, but the other two, besides cropping tighter I'd want a faster aperture to distinguish you two from the background better.