Wow! How nicely you've pushed this, working through changes in composition, value, colour -- you took the whole course in one painting.

With the new close-ups, I confess embarrassment at having misread the earlier version of your wife's hand -- it was the child's knee! The little white sack was throwing me off. (Maybe that doesn't even need to be there . . .)

Last observations, both about the bubble-blowing child. Her flesh tone is virtually monochromatic from chin to hairline. Since you're depicting in her face reflected light from the glass table, perhaps you could add a little colour here and there where the planes of the face turn away from that light, say, on the upper segment of the cheek (where that brownish dark tone is a little heavy anyway). Also, I think the ear is tilted a bit much. I realize that the head's posture also gives the ear a tilt, but it seems a bit excessive.

Now you've got a keeper. Well done.

Steven