A good looking series overall... and I see you're in Leander -- I live in Cedar Park
Overall, your white balance is inconsistent. Her skin tone changes from shot to shot.
In #1, the pose is very cute and, having been swayed to the 'angles in shots are evil' side of things, I have to say that the angle the photo was taken at actually works well with this shot. In my opinion, this is your strongest shot of the bunch.
It could stand to be a bit warmer and de-hazed (all could stand a bit of de-hazing). Here's a quick edit with both of those things as well as a slight adjustment in curves:
#2 has a nice use of framing with the elements of the playground but the limbs are cut off awkwardly. Both this and the first have very nice focus on her eyes.
#3 does nothing for me from a compositional/subject standpoint. Though the lighting on the swing in the background would have been a neat element to work with (its illumination of the chains). Your subject is lost in this image.
#4 I don't think your focus is where you intended (I could be wrong!) but the focus, for me, doesn't work in this photo. This and #5 both use a nice center and symmetrical approach to composition, but again, you trim parts off closer to the joints. #4 would be better if the feet were in the frame. You might want to experiment with a tighter cropping and reduce the negative space, but I'd definitely say, if you did that, put the cropped and uncropped side by side and see which you like best.
I like the way the light works on #5 in regards to the subject's hands. The feet could work in this, but ... the blurring is a bit harsh I think.