Hi Alison,
Ordered - Bright, colourful and nice use of DoF/Perspective.
I think I would have tried to get the top of the closest book into the shot, along with the bottom which you have got, purely for symmetrical reasons. Nicely on theme.
Comfort - A similar comment to those I've made on a few others today, I think the white point is off and would have adjusted it. The camera sensor assume the shot to be 18% grey, as you image is mainly white, the camera exposes it incorrectly, so it needs a little boost in post.