individual Roman shades hung to look like one
"If you need multiple roman shades to fill a wide wall of windows, make sure you choose a pattern that allows you to stack each shade next to each other so it feels like one long shade. When there are no breaks in between each shade, your window looks streamlined.
Tip: Don't forget to hang them higher than the windows if your windows are low. When measuring the height you need for the shades, be sure to include the extra material to cover the gap between ceiling and top of the window."