Have you thought about shutters? Either traditional or wide louver (plantation shutters) would really look great. We are waiting to have ours installed, and the price was actually not as bad as what we thought it would be compared to other custom treatments. I'd go with roman shades if shutters aren't an option; maybe white trimmed with navy? (I'm assuming your wallpaper is navy and white) Then I'd put something in the corner to balance the windows being a bit off center. Cool room!

agree. This room first of all is sooo pretty!! Love love love!! Second. It’s more casual so I don’t know if you need curtains. I would start with simple white shutters or a neat roller shade and then see.