Concerned about my chin strain after braces with no extractions. Am I a candidate for orthognathic surgery? (Photos)

I just got my braces off after 3 years and I'm starting to regret not getting four teeth removed as suggested. I've noticed that my profile isn't as great as I thought it would be after orthodontic treatment because my mentalis muscle is flexed making my profile look blunt. I think I may have been a mouth breather as I had a narrow palate and was diagnosed with having a longer downward growing mandible going into consultation. Would jaw surgery fix this? Would I need braces again?