As soon as I saw this picture, it became one of my favourites. I just can't believe it took me so long to, well, favourite it. ^^0
It's so unbearably cute, full of child-like innocent. But it's the framing of the picture and posing that gives this picture a broader sense of context. It feels like one of those photos you take of your children in the moment.
Add to that a soft colouring and lineart style and this picture is just wonderful.