7 - Nice warm light. Minor, but I find the shiny object back left slightly distracting, having said that, perhaps going for more of a vertical framing and possibly cropping that out, might have given this even more of an edge. Nice moment capture. Peaceful scene. Good title.
Clearly a shot that means a lot to you, so no amount of criticism here should take away from what is a lovely shot for the family album.
However, I'm not sure a square crop really works, I feel that it has been an attempt to rescue a crop out of the camera that didn't work. A square crop IMO needs to be really compelling and look as if it was planned the moment you pressed the shutter. The focus is not on the subject, but in front on the grass. The depth of field would ideally have been much narrower, you either need to open up your aperture, or buy a faster lens. A good 50mm would have done the job, and is very affordable. The quality of light on the face is lovely, and really gives the shot a lot of atmosphere. The timing isn't perfect though, there's nothing exceptional about a small child reaching for something. A little glance at the camera would really have clinched this. The main problem with the photo to my mind is that the point of focus is weakened by the amount of negative space on the left of the shot, which is sharply in focus. Some Photoshop work to subtly blur the rest of the shot might have helped. Anyway, thanks for sharing with us.