So, from your pictures it's not clear what your teeth look like. What I can tell from your pictures is that your lip doesn't move the same amount between the right and left sides. That can be due to scar tissue, nerve damage, or improper healing. I think that is the first step into getting the smile you want. You may need other dentistry, but that cannot be diagnosed with these pictures. I would see a very good facial plastic surgeon or a really good oral surgeon to help diagnose and offer solutions to fix your smile. An option could be to use botox to the right side and that would help the lip move uniformly, but you would end up with a situation where you don't show much at all when you smile which may make you look pre-maturely older. I hope this helps.