What color is your child? Without knowing that, fiddling about adding a little this and a little that is just guessing. Have you tried holding the photo up to your child and comparing?
I'm being a bit facetious, of course, but really we don't know what color your kid is. The skin color in the original certainly looks within the range of normal for human beings, so well done on that. Getting closer is going to require the actual child, though.
The background suggests that the original is actually too yellow.