C&C per req:
1. This is a cute shot; looks like one of those "turn around and there it is" shots. Two minor things that bother me: You've got Mom too close to the RH side of the frame, and the cars. If this was a shot you just grabbed, fair enough, you might not have nailed the framing, but those cars are easy to get rid of. Make them go away!
2. This is a nice, casual family shot, but IMO, a little too casual. I'd like to see some more refinement in the posing, such that the daughter was moved a little farther right in the frame and Dad wasn't quite so hidden. I also think having the daughter sit straight and Dad put his legs down would have helped. I get the feeling you posed them into the sun, based on their squinting (and yes, I know, almost everywhere on Guam is 'into the sun'

), but this doesn't make for the best images. Turn them out of the sun and and use supplemental light to bring some life into the eyes. Also, don't forget to level; this one looks about 3/4 degree down to the right.
3. Again details... using a polarizing filter would have brought the reflections under control and added some saturation. Using light would have allowed you to knock down ambient and keep detail in the sky, and lastly, watch your horizong lines. Just a slight change in your position and it wouldnt have gone through her head. Not a show-stopper, but not ideal.
4. As above for exposure. I would have liked the younger child moved just a bit to the right so that she(?) wasn't obscuring the older one's face quite so much. This would have allowed him to bring his head down and eliminated the reflection in his glasses. Also note the upper edge of the water going through his head.
5. I like the arrangment here. I would have perhaps moved the older girl just a bit farther left so that the spacing between her and Dad was closer to that of Dad to mother, and had Dad bring his leg down (Also note his hand. Fists/tightly clenched hands are rarely a positive element!). Again, heavy squinting...
6. Cute shot. I think again more light was needed to knock down ambient so we had some detail in the sky, and a polarizer to kill the reflections on the water.
Overall, these are nice images, and your processing style seems clean and straight-forward. I do think however you need to keep a closer eye on the small details of posing and positioning when shooting, as well as work on getting ambient light under control.
Just my $00.02 worth - YMMV
~John