--- the v1.5 stays a bit closer to the original Flux image, I mostly try both and see what's best, results may vary ---
Changes in v1.1 aren't that big, but a lot of times the refiner messed up the teeth, no problems with closed mouth!
Because I don't really like the skin tones and details that come out of the different Flux models, I created an SDXL based refiner for Flux, only tested with Flux.1 S for now, but it seems to work good!
Flux refiner, use with Flux Refiner workflow for refining, detailing and better skin tones, also works for NSFW details.
Teeth fix
As said earlier, it also helps to improve NSFW images that have censored parts in the basic Flux models!
This is all still experimental, again use with this workflow!