The psychotic Alice from Murder Drones.
This is my first model so it might need some adjustments (please let me know in the comments if it works for you or not, so I know what to improve).
From my own experience the more accurate the description the better the results.
Prompts: orange eyes, colored sclera, robot, horns, helmet, dark brown hair, ponytail.
Negative prompts: human, text, signature.