Back in my retail days I would often suggest (and still do!) using panel draperies and roman shades on different windows in the same room. It works especially well in a bedroom when bed has windows on either side and nightstands below (the perfect place for romans) and a large picture window somewhere else in the room (the perfect place for panel draperies.) I would often get the response, "really? use both styles in the same room?". Absolutely! Here are some great photos by professional designers who married the two styles in the same space. I love the look.