To improve the results do check the following:
1. Try to use a high quality image of at least 1024 x 1024 as your source image.
2. Zoom right in when setting the facial wireframe and fitting points so you get accurate results, especially around the eyes.
3. In your screenshot the facial wireframe needs adjusting. Try lowering the jaw area so it isn't so close to the mouth. This will reduce the image stretching.
Peter
Forum Administrator
www.reallusion.com