Bath window exterior

I installed the octagon window technically backward. Considering one wouldn't be looking at the back of the Studio most often, I thought the routed detailing would be best served sitting on the interior.

With the addition of the siding, the wall was thicker than the depth needed. I added a cardboard octagon cut to fit. I glued this piece to the now exterior trim, then painted it to blend. Now there's a seamless fit for the trim on the exterior.