This LoRA was trained on SDXL Base using 60 grayscale storyboard sketches and character portraits at 21:9, 16:9, and 1:1 aspect ratios. At full strength you get the most abstract sketches - good for leaving the fine details of a scene to the imagination. At around 0.8 strength you get much more coherence and prompt faithfulness. You can go lower from there to get more detailed and realistic sketches.
Strength of 1.0: Strongest styling, less coherence and prompt faithfulness
Strength of 0.8: Good styling, medium coherence and prompt faithfulness
Strength of 0.5: Conventional styling, best coherence and prompt faithfulness