Critique as requested:
#1- background is a bit too busy and untidy for my liking, and I'm not really digging the shadow dad is casting on the lower left. Moving the family away from the backdrop as much as space allows would help, I think. You'd still get the "hey look, a Christmas-y background" effect, but more attention would be on the smiling family because they'd be in sharper focus than the background.
#2- lighting seems a bit flat and "cold". On the tree in the background, I'd prefer to see the lights rather than the green wires of the light strands. Move the family away from the tree, expose for the lights, and illuminate the family with flash.