What are the measurments of the panels?

Agree with Rho - Dodendron. If you have already purchased panels, the main question is how long are they?!
The only place really is the flat section just above the window and on the wall molding. Although the window’s molding sticks out a bit, it doesn’t look like it’s enough to cause a problem. There are also rods that curve back at both ends. If the panels are too long, they can be shortened. But if they are too short, no good! Better to figure out where the rod will go before purchasing!

Think I got it! Just need wallpaper and light fixtures and this room is done! Thanks!