Hi Rachel. Very good baby set. Just a few suggestions?
I generally recommend clothing that's not so bold. The colors, though very cute, do distract the eye from the baby.
Also, it looks like that garden area might have better light is another area. You want to choose locations that give direction to the light, not so flat, like closer to the trees or shrubs at the edges. One of the best was the 4th one because the ground is acting like a scrim and it gives a more 3 dimentional look.
Sorry for the lingo. The way the child is facing in number 4, the ground subtracts light from that side of the face. It makes the image more 3 dimensional.