Your idea is wonderful and I'm sure this is an emotionally important photograph to you, but let me tell you how I think this could be better.
First when you shoot this type of shot less is more. By that I mean we need to simplify the shot as much as possible. I think we could have improved this more by losing the distracting background and shooting this against a neutral backdrop like black, white or even gray.
Second, we have way too many fingers competing for attention here. I would suggest only two hands the adult hand cradling the younger one would add a ton of beautiful emotion to this shot. You could shoot it from many different angels and not go wrong.
Finally, the lighting is really harsh on the right side of the frame. Toning that down by defusing it would really help out.
It's very sweet, I definitely feel the emotional impact from this image. Nice composition too, but I think you may have misunderstood the challenge criteria. But aside from that, I would only suggest you do some noise reduction, and then print and frame it to make it a lasting family memory.
good try I like the concept behind the photo, but I think technically you are lacking with this photo, the focus is soft, the colors are bleeding and there seems to be a lot of noise.