It is not a very complex or difficult workflow.

I am publishing this workflow to answer questions like "your image has a lot of detail, how did you do it", "can you share a workflow?".

Of course, it works well on other models, but I would like you to use my FRT models and give feedback if possible.

This workflow is in order:

Image generation with Lightning model,

Upscale with SD1.5,

there are also elaboration and correction processes with SD1.5.

SD1.5: https://civarchive.com/models/286334/frt-mixmodel

Lightning: https://civarchive.com/models/433850/frt-mixmodel-sdxl