I love the expression of the little guy on the right - looks like he'd had just about enough of 'quiet time'! :) Nice shot if a little bright in the background.
Very cute childrens' portrait. Expressions are very well captured. The background window is too bright may be if that was avoided then it would have looked much better.
I love photographs of children. I really like the color saturation and the fact that each child has a very different expression on their face!! LOL The child on the very right is looking as though she is TRYING to focus, but is losing interesting... quickly. The middle child looks very studious and intent on finishing her "project". And the boy is just being... well.... a boy!! LOL