Elevated area around switch due to repair - need guidance matching texture?

This is creative free art. The artist is unknown. First you want to sand that whole area smooth and try to cut down the elevation difference. You're going to have to practice this a bit but I've had pretty good luck using a wallpaper paste brush and dipping the brush into drywall mud and gently flinging it onto the wall. You can also dab it on the wall. Now you have the dimples. After it sets for a while, get your mud knife and make some sweeping strokes to flatten out some areas. This is going to take some practice so be patient. The good news is if you screw it up,just scrape off the mud and start over.