Emma Watson, incl. images as Hermione Granger from the Harry Potter films.
Different images from different films were used to represent different ages.
The age range of the pictures is between 11 and 16 years for Hermine.
After several tests the best setup for me is:
Base-Model: Jaggernaut XL Tensor Art Exclusive - 7.5 + RD
Lora-Strength: 0.5-0.8 for images (but depending on the image you can try different weights)
VAE: Automatic (depenting on your base model it might be a good idea to change it too)
Sampler: Euler_A or Restart are having pretty good results. DPA (+2M) is nice too, but that's depending on the king of image you want to create too.
Sampling-Steps & CFG: I prefer 20 - 25 steps and a CFG of 3.5 up to 8 to get good pictures.
You can scroll down and see some example images you might want to use by clicking remix so you can just transfer the creation setup of that spec. image to your creator.