I need Help with Room Decor!Please?

Im doing a refreshing theme. Its a really light blue. its accent is a darker teal and a sort of Angelic blue. i will have black bed frame and headboard and i was hoping on puting like light colored wooden floor. and a quote on the wall with vinyl letters. I dont know what to put in my room as far as decorations. its a relaxing theme and i want it to feel fresh and calming. What sort of scenic pictures can i put? What color candles? Any other things i can put? Im 16 also by the way so i dont wanna seem too old.