I think the problem is that these are two very strong colours and they are competing with each other rather than complimenting. In the interest of saving some money I would paint the wall above the plate rail a few shades lighter than the bottom. Let me know if you need some colour suggestions) Check out some fabric stores that incorporate different shades of turquoise/blue/greens for accent pillows. Choose a colour from the fabric perhaps a delicate turquoise/green & add this in a drape making sure they go to the floor. The current drape is too short. A more solid bedside table could work (look at consignment shops for a bargain that could possibly be repainted). The bedding is quite bold so the focus should be on softening the room a little bit. A stronger night light would work because the overhead light is too bright. Get your daughter involved & ask her to pull some ideas from the web or posters then have some fun with her room. Check out Sarah Richardsons website she has some great inspirational rooms. Good luck.

It feels like there's too much unbroken blue over the bed. I'd hang a canopy, or you could put up some black and white shots.

Los Altos Girl's Bedroom · More Info

Karen Litton · More Info

A headboard would ground & complete the bed.