I have done a number of attic windows, and I have found the most success to be with the same colours - just different shades - so all browns or all yellows. I made one once with different colours, and when I was done, I really wasn't happy with it.
The whole purpose of the attic windows is to create that 3-d effect, and I personally found it much more "3-d" with all the same colour.
If you google attic windows and look at the images, you'll see success with different colours, but the "dominant" colour seems to be on the bottom. Also, like someone else mentioned, the "yellow" strip is much more narrow when you look at the pictures of attic windows.
Good luck!
The panels are stunning!!!
Last edited by MarionsQuilts; 03-24-2018 at 02:23 PM.