Arched Kitchen Window

One of the problems we noticed in the kitchen was that the visible wood frames of the window seemed to be arched inward. It's mildly depressing to see the center of the top wood frame bending downward, while the center of the bottom piece bending upward. As it turned out the Bad Labor guy either didn't know how or didn't bother to shim the window frames properly to make it sit horizontally against the 2x4 frames inside the wall. When Daddy redid the work, it was also noted that the window itself was not shimmed properly either. Sigh...