Also, just some friendly criticism. I really like the second and third photos, but the chandelier in the first photo is very distracting -- I'd crop the photo to include only the baby and father. It would be a tight crop, but better than including the light fixture.
And the last photo is nice composition wise, but the focus is on the tip of the baby's nose... leaving the eyes OOF. I would either stop down to ensure the baby's entire face is in focus, or focus on the eyes and let the nose/mouth fall slightly OOF. I've been using my center AF point only to ensure I'm focusing on my son's eyes. If I want more in focus, I'll stop down to f/4.5 or lower.
But overall very nice shots! :-)