For this QWEN Edit 2509 lora, Use it in the "Edit" tool (not in the t2i) one and leave the input/reference image blank OR use it in ComfyUI, yielding better results.
strength: 1.0-1.4
Try to increase the strength if you aren't satisfied with the results. Sometimes the results produce a curvy/fat woman, add "slim woman" in the prompt can solve the problem.
Qwen is so much better than flux, in terms of quality, prompt adherence, realism, etc. After doing some research by finetuning Qwen/Qwen Edit 2509 with LoRa, we can conclude that: Qwen Edit 2509 > Qwen > Flux.