I did yellow/gray too and loved how yours is turning out. I especially like the wall decals. The bookcase would look great spray painted in white. Changing the pillow to yellow would be a nice touch (I used iron-on hem tape to make an easy pillow cover ) A side table by the glider would be a good idea. I've already been using mine for drinks when I'm hanging out in the nursery.
Re: PIP - Nursery 90% Complete!
I think the chair looks fine!
Sweet and pretty, I really like the decals!