I'm guessing this was a spur of the moment shot but, with the exception of the womans hair, you could not have posed it better. It has a cozy and warm feeling. Great shot.
I love the two faces here. They are beautiful. The picture tells a story of contentment and love. The soft focus adds to that well. Wish the woman's hand and arm were visible coming around the little girl on the couch - it would pull the composition together and add to the "story." The line in the wall behind in distracting too - is it a curtain that could have been moved?
The soft focus is good without going over the top, it sets up a nice atmosphere and mood, which is also helped by the golden light coming from behing them. The only things I dont really care for are things that can not be controlled in such a candid shot like this, such as the pacficier/dummy and the either cropped out hand or the uncropped finger. It's good to see that your choice of subject CAN be something more than just a snapshot. Nice image.