I looked at most of the comments on this picture, and a lot of them say, "Beautiful'. I want to be original, but I can't.
The expressions are realistic, the lines are sharp and absolutely gorgeous, and the colors and lighting are bright and draw the eyes directly to the faces. The picture actually gives off a sense of calm and peace . . . which, according to the wording, is what it's supposed to do.
So . . . the overall effect of the picture is absolutely beautiful.