Update
now can support more than two regions.
A simple workflow that allows you to use two different Loras (and ckpts, prompts, etc.) in different regions of one image.
Since TwoTwoAdvancedSamplersForMask from Impact-pack (https://github.com/ltdrdata/ComfyUI-extension-tutorials/blob/Main/ComfyUI-Impact-Pack/tutorial/TwoAdvancedSamplers.md) is broken now (I always get nothing but noise), I found RegionalSampler (https://github.com/ltdrdata/ComfyUI-extension-tutorials/blob/Main/ComfyUI-Impact-Pack/workflow/regional-loras.png) is a good way to use two LoRas in one image and prevent them to influent the other.
I also combine a pose generate workflow in this, it is from part of this workflow (https://civitai.com/models/21100?modelVersionId=94130) (btw, its workflow can use different prompts to control more than 2 regions of an image, which is very worthy to study.)