Lifting His Head Just A Little Bit

After much practice, my little man is making progress at lifting his head... Now he will only do it for a litlte while and then he becomes stuborn, puts his head down and cries. We practice for about 5 minutes before we have to roll him back over. He also now notices the camera, which makes it a lot harder to take a picture of him when he is smiling... I talk and sing song, and he is all happy and giggles but when I bring the camera up to take a picture, he just stares blankly, follows the camera back and forth until I put it back down. This last picture I usually what I get from him. It is like he is confused