Love it! Your color scheme is sooo cute, but not overdone at all. I love that even your binders match!
I love blue and green together. You have put a lot of work and care into your room and it shows. Did you purchase the stars or make them somehow?
The stars were a set of musical symbols. http://www.friendshiphouse.com/product/category-1f0e5383-d597-4e8f-9216-e9a2d0402c8d.aspx