Use this lora with negative weights.
This lora has been trained on AI-generated images that exhibit typical AI-looks; plastic skins, gigantic boobs, etc., etc. The idea is that when applied with negative weights, the lora will generate more natural less AI-looking images. A showcase image shows a kind of issues that can be removed by this lora.
Also, I found that the lora can be used to inject some variations. Sometimes a generated image is perfect except there are some artifacts or some body anatomy issues. An injection of some variations can sometimes fix those problems.