well...
- overblown highlights all over the place.
- maybe different crop.
- child's face is underexposed. there is always a problem when shooting someone with the cap.
I would say that you need to change the place of shooting. No shooting in a bright daylight, find some shade and place the child there. For someone with the cap you'll need a reflector to bring back the light on the face, or change the position of the child's head in that way so light would fall on the face and eyes.
With this said, all parents will be glad to have any photo of their child. They wouldn't probably notice all imperfection, all they care is the child's face and this cute expression
Someone else will surely say more...