Sweet looking kid!
Your camera is getting fooled by the brightly lit background and the masses of white fabric, so these could all stand to be brightened up a fair bit. When you're shooting masses of white dial in some exposure compensation, +1.0 or so.
These look oddly soft, not sure what's going on. I would guess the camera is putting the focus in almost but not quite the right place a lot of the time.
Someone's going to point out that the white fabric is actually coming out blue, because it's in the shade, and they will explain that your white balance is off. You can fix that too if you like, but I think that it looks more or less natural as-is -- after all, the kid IS in shade..
Seeing as the kid IS in shadow, it's hard to get any interesting light on her. Direct sun is too harsh, shade gives light that's too flat. Off camera flash is the orthodox solution here, but you can fool around with things that reflect light as well, like husbands in white shirts, light colored automobiles, and the like, to push a little more light onto the kid from one side or the other, to create some shadows for a more three dimensional look to her pudgy little face.
Cute scene, cute kid. Good setup, and nice attention to the background -- there's nothing bizarre back there. Looks like the depth of field is decently handled as well!