Rain and mosquitoes holding back progress, but I have the other side on now.
Symmetrical enough for me.
Lower pic, showing one of the rear wheel skirts and the need for a short airdam off the bottom lip of the front bumper.
And a picture showing a more complete view of the area under the engine. Wide open canals letting air up into the wheel wells from under the car. Bad Subaru engineers!
The grille blocks all fit within a few millimeters of the bumper. I'll be sealing the edges with caulk if it ever dries out for a couple of days.