Duster Rear Window Louvers

ok guys and girls, i spent this morning mocking up my own template out of cardboard and a glue gun.i took the pop out latch off and i was able to push the window out far enough to trace it. its rough around the edges and its hard to get any curves. this is a pic of it on the car. i painted it black ,but the paint is still wet, and i am going to attatch it to the window here in a few. i think it looks pretty good for cardboard lol. what do you guys think?