Isn't it fun to have your own staff of models! I enjoyed looking at your kids who probably get along just fine when not called upon to choke one another. ;>)
The composition on this image is a little weak. You might consider using a drape or a throw of a solid color as a backdrop for the children. The present cloth patterns, the window and the dark area compete for attention and draw away from the story you are telling.
Then, and I know this is difficult with kids, your image is just a touch soft-focus where I think a good sharp image would be a plus. Consider using a tripod if you can. And of course, if you used a backdrop, and could move your composition so as to put that window to one side, you would have better lighting on the kid's faces.
I'm pleased to have the chance to look at another of your images for the Critique Club and I'll look forward to seeing more as time goes on.