This LoRA collection works better for INPAINT, but it does a good job on txt2img too.
I was having a problem generating images with people who have piercings (nose or lips). Flux doesn't know how to handle that properly, and even training a LoRA for a person with piercings resulted in awful results.
I found some piercing LoRAs, but I noticed a common problem: Flux needs to be trained on the specific side of the face where the piercing should be, otherwise Flux will put the piercing on both sides.
So, I trained it focusing on the correct sides, trying to fix this. It's not perfect, but it works well!
Trained so far - SELECT THE TYPES AT THE PAGE TOP:
ring nose piercing right side
ring nose piercing left side
pin nose piercing right side
pin nose piercing left side
ring nose septum u-shape
lip piercing centered
eyebrows piercing right side
eyebrows piercing left side
medusa piercing centered
lip piercing right side
lip piercing left side
Work in progress:
double lip piercing right side
double lip piercing left side
Because the training data used close-up shots (to avoid changing generated the faces), it might not work as well when using txt2img with faces that aren't in close-up.
In that case, please use inpainting, configuring the bounding box as a face close-up. The process to do that may vary with other tools; I'm using InvokeAI.