This doesn't work for anything that doesn't use the upstream default stable diffusion checkpoint. I generate a lot of images with Pastel-mix, Anything, Waifu Diffusion and Counterfeit, and none of those are giving sensible results with this tool.
The model underneath this is trained only on data from SD 1.4/5 so this would be expected. I have another model training which covers all models you mentioned which should perform well on those
Can I have some kind of direct contact with you? Email, Twitter DM, Telegram, heck, I would download some new kind of app just to have some conversations.