I love a window cornice for their ability to take a short window to new heights. I would build this cornice 12 inches tall - mounting it just low enough to cover the top of your window treatment.(blinds) I also am a fan of making my cornice wider and including side curtain panels to add softness and color to a room especially a bedroom.

Thanks! I would love to do side panels, but the dresser fits right against the window frame, and that is the only place it will fit. I had to get a youth dresser to fit the 56 inches of wall space I have.

I also have a few short walls - drives me nuts, but we work with what we have right! Good Luck