@mwinkelmans hmmmm.....maybe the top right one?
I'd actually love to see a view where we are outside the window and looking slightly down on the boy who is peering up in wonder (wide eyes, mouth open in the beginning of a smile. The top part of the window will show a strong reflection so we will be able to see stars (even a shooting star) and the reflection would fade going down the window--the top of the child's head would probably be somewhat obscured from the reflection but the main features will be clear. On the sides of the child (bottom of the window sill) could be all manner of toys.
To me that would be much more interesting. I understand the prompt doesn't say that but maybe you could sketch that idea up and see if they like it--maybe it didn't occur to them?