Not quite enough

There's something about this shot that I'm just not too sure about. The client hasn't seen this one yet, do you think it emphasizes the size/growth/togetherness factor enough? By this stage of the shoot the bub was getting tired and somewhat irritable so I just did what I could under the circumstances...
Critique welcomed as per usual:
Crop as suggested by Kipper and Xerebus:

Critique welcomed as per usual:

Crop as suggested by Kipper and Xerebus:
