The baby's smile is lovely and really adds a look of innocence to the photo. I think it migth have been a bit stronger photo if we could see more of the adult hands (implying the protection a bit more) Another aspect that would possibly also make it stronger would be to remove the clothing from the image - the raw connection between the baby and mom. My $0.02CDN :)
i feel the crops slightly too tight here ... and im none to sure about the hands from the parent, i feel they should be either totally visible or not. great lighting and use of shadow