The LoRA's tempermental. Sasha occasionally (rarely) mutates, resulting in two heads or conjoined twins. Weights above 1, or high CFG scales may result in artifacts. Her lips often have folds or bumps, but face fix should fix them. The sample images didn't need it.
This is my second attempt at a realistic fictional character. The model was trained on a character who appeared during my own generations. Unfortunately the dataset was not ideal, but it was the only one in existence.