How are your walls decorated?

What do you have on your walls?
Are they painted a nice lavender, or have they been given a wallpaper? Are they obscured by photos of you and your friends, or posters of your favorite band? Are they hidden behind rows and rows of books? Do you have tribal masks, or maybe some old school vinyls hanging? Have you got vases of beautiful flowers lining the walls?

Have you kept them minimalist, with a nice white paint and no decorations?