Nice work!
If I need to nitpick :
1st Picture : Too much space above the head. Rule of thirds would work well here - i would crop it tighter. Pretty sharp, but the sharpest area is on her outfit. Her face is a little softer. Nice colours!
2nd picture : Youngest kid is too soft/oof. Increase aperture..Great pose. Unfortunate placement of waterfall. Can you move it?
It feels like a weird shower for the guy. Sometimes, we cant get it all. Choose either the background, or the people. These days my biggest worry is when a client says...I wanna take you to this nice park...there is this really nice..tree. or object
.
3rd picture : A little too bright. The issue is the treatment of skin colour renders them the same as the background colour - making them blend.
Great job overall!