Trained on images of Rebecca from RE1 and other games where she has the same design. A large part of the training set are 3D images, so it might lean towards that at times, but you can control that via the prompt.
Usage and notes:
Positive prompt: Rebecca Chambers, blue eyes, fingerless gloves
Add pants if the model makes images of her wearing shorts.
Add ponytail to negative prompt if the model gives her a ponytail.
Remove fingerless gloves from the positive prompt and add gloves to negative prompt if you want better-looking hands.
I did a mistake with the sample images and created images where she has brown eyes, but her official eye color looks to be blue or green -- blue eyes seem to be the most common.
For full prompt examples, look at metadata for the image uploads.