If that's drywall, cut it open and move the switch to a more artful location. Change the switch style to one of those flat rockers, or a dimmer if appropriate. It will go better with the look. If it's not drywall, the patching will have to be much more carefully done, but will still work. Remove the trim and cut the wall open under the trim line. The trim will cover the patches edges. You can place the switch centered in the panel, high or low. I would most likely replace the panel if it's ply. and use the trim to cover the seam.
If you use one of the big rectangular rocker switches with or without dimmer, I would also replace the AC outlet you have there with a similar style outlet.
BTW, welcome to the Forum, glad you joined the fun. Looks like you're pretty experienced. That's a nice job.
The more I do, the less I accomplish.
Last edited by DesertRatTom; 11-01-2017 at 10:26 PM.