Portrait painting

Hello everyone, how are you all today? i hope everyone is having a great day.
today i made a new digital portrait painting of a women with a big smile on her face.

smile is hard to draw, at least for me. in most cases they look very rigid and forced, even in this drawing if you look at the sketch phase, you can see that the smile was looking a bit creepy.
but i kept working on it untill it felt natural.
let me know your thoughts.

here are some process shots:

reference image