My lateral incisors are sticking out. How can I fix it? (Photos)

I’ve had braces for two years to correct a severe overbite (my tongue kept pushing my teeth forward), a gap in my front teeth and canines teeth that were too high. I’m now wearing permanent retainers. Unfortunately, my lateral incisors are still sticking out a little (as you can see from the pictures). I’d like to have a more harmonious smile, what are some options? Can this be easily fixed? Thank you!