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.
Awesome Loft Beds--Since you won't have a window on the one end of your upstairs, this could be a fun idea for the kids area. Not necessarily a bed, but a 'loft' on top of a 'hide-out' area---or something. The bookshelf stairs are a neat idea too.
use outdoor planters from lowes- spray paint and you have storage- a place for all the stuffed animals or books! (going tomorrow to buy!) Lolly Jane- Craft tutorials & DIY home decor: Toddler Bedroom Makeover [REVEAL]