Cute ideas for a girl's bedroom?

I'm going to be 15 in August, and the last time I redid my room I was probably 11 or 12. I have a white bunk bed leftover from when my sis used to be in my room when I was 10. 2 white dressers, my walls are a gorgeous turquois, which I love and want to keep, I have an awesome rug that is chocolate brown, cream, and turquoise, the theme of my room is that. I don't have curtains but I do have one window and a double closet. :( I have a book case, I want another one, I have a chair and a foot rest, but I never use it, I have a small desk I want to get rid of, a bulliten board I have never hung up, and I will leave a diagram, the point is, I want a change, something newer, my mom wants to redo it to, and we are shopping for art today. I really want some cute stuff, maybe photographs, I'm really into London England, it's a long story, but my best friend (whose room is really cute and adorable!) has pictures/photos of places in England, mainly Paris, Italy, and basically Europe, they look really good, but now I can't do something like that, I don't want to copy. Anyone have any ideas?