#3 - Background is blown out. A trick to avoid this is use your pop-up flash. Set it to maybe 1/3 to 1/2 power (check your manual if you're not sure how to do it), then expose for the background. This should get your subject (the little girl) and the background both nicely exposed.
Your pop up flash can bring a subject in the shade up to the exposure level of a background lit by direct sun? Judging by the looks of the shot, that would be around sync speed of 1/200th of a second, ISO 100, and that still puts you at f/11. In order to bring your ISO low enough and your aperture small enough to properly expose the background, you are going to be beyond the capabilities of an average flash to pull the subject up to the right exposure.
Heck, that same shot will give an SB900 trouble. It would require a very powerful flash to not get an underexposed subject and a properly exposed background. I just don't see how the pop up flash would have helped here other than to bring the shutter speed way down which would have definitely over exposed the background.
Now, when shooting in shade, it is always helpful if your background is something in the shade also.
These shots look like they were taken at around 2 in the afternoon in broad daylight. Not exactly the most forgiving circumstances for photography. All in all, I would say the OP did a good job.
To the OP, these shots would be a lot easier about an hour after sunrise or an hour before sunset. They call those the golden hours and they are photographers' bread and butter shooting situations.