i think you should paint a chalkboard wall like this on the wall they come into the classroom. younger and older siblings can have a minute of fun there, or kids can have a fun little activity with their parent there before they transition into classroom.
Tree book shelves -- great for kids room. Enticement to read. I'd like to see it made with darker wood or painted a rich brown color and placed in a living room. Also, this is full like a summer tree, I'd keep it more like late autumn with fewer displays.