Window arch treatment

This is my first project so I’m sure there is a better way to do this.
I have windows with a arch. Because the arch is 35" wide I had to cut 2 sides, the Right and the Left. The window has a front and a back. The back rotates on a slider to cover the sun-ray slots in the front.
I used one cnc design and selectively cut parts for the Left and Right Front, and Left and Right Back since they were basically all the same.
Images show it closed, half open, and full open for sun light.