You can read all about the making of this LoRA here:

Training Musings: Flux Rapid Training | Civitai

TLDR:

Super accurate LoRA to recreate Akira Toriyama's style, with a few quirks that can be mitigated through prompting. Used the Rapid Training option, which means there is/was no way to avoid some of the overfits.

Trigger: toriyama_style; Useful addition: manga style