What would you do with this room?

Okayy. I have brand new white furniture, a brand new white bed-quilt and two matching pillows, white sheets, and dark wood floors. I kinda want to monogram my initials on the sheets but I can't decide what color. How would you decorate my room? I can paint walls but I have to keep everything else the same because it's all very nice and new and it would drive my parents crazy if I wanted new bedding or furniture (which I don't). I can add toss pillows and extra blankets for more color, I can add accesories and rugs and posters or art. How would you decorate this room?