Lovely start and best of luck with the childrens Christmas book, I know how daunting a project like that can be.
I can see that you've gone for a 1 point perspective and whilst the majority of your objects look spot on I think the bed could do with a tweak. I've done a quick draw over to show what I mean. It's mainly the left hand side of the bed:
Also another option that I think might be worth trying is to have a go at a different viewpoint. Maybe a side view of the bed with the window behind, the mother leaning over and closing the curtain. This would allow more of a focus on the both the characters and emphasize their interaction. At the moment the child is getting a it lost behind the headboard/railings. Just a thought
I look forward to seeing your progress.