Usage and notes:
Starting prompt: 1girl, re6helena, brown hair, long hair, brown eyes, breasts, jacket, tank top, cleavage, fingerless gloves, pants, belt
You don't need every tag mentioned above, but it's a good starting point for the full design.
If the AI adds long sleeves to her jacket then add sleeveless jacket or short sleeves.
For full prompt examples, look at metadata for the image uploads.