First version of the Lora, on a following version I might want to tag better the different smiles to prevent the leaning it has toward a traditional smile.
Looks like the higher the weight the more embarrased the character looks like.
You can add fang and skin_fang to the smile, if you add skin_fang make sure to add fang and fangs as negative prompt or you will end up with a lot of fangs.
