This LoRa will allow you to use your favorite character with it without altering its face.
(Minimal alteration can technically happen on eyebrows, mouth and eyes)
I've made huge progress in training Loras very recently so I'm pleased to say this one is excellent by my standards.
You can even combine it with my other flux Loras, no problem !
Trigger word : Ahegao - Please use also "tongue out", seems decisive
Other useful words (reinforcements) : crossed eyes, drooling, dr00ling, s1de (for side view)
Weights : I think 1 is fine, it definitely doesn't alter the face, but then if you are using more than 2 loras (your character and the ahegao), you might want to play with weights. Not sure it's good to go lower than 0.6 though. Haven't tried more than 1.2 either. Interested in your feedback on this.
Known issues (from my little time testing) :
Tongue can sometimes come out a bit weird
Drooling tongue, unfortunately, despite my best effort, very rarely comes out. Instead, it sometimes messes the tongue. Lesson learned, I will really stick as much as possible to a single concept in my future Loras, and just make more versions if doing variations. If you got a drooling tongue, good for you, the ahegao gods are with you :-D
Hairstyle can be altered (quite rarely) by the lora as the dataset pics were a lot of e-girls and cosplayers. Actually for me it's almost an improvement rather than an issue, lol. But just saying it's best to include the hairstyle you want in your prompt just to be sure. 90% of the time it's ok though.
For the same reason, your character can get a bit of mascara and eyeliner. No big deal.
Crossed eyes don't come always, as well as rolled backwards eyes which are rare. But they can, and do come. Add some prompts of your own, be patient, make many generations, etc
It's possible the Loras drives you more to close-up since it was trained on faces. YMMV.
This one I don't really need to give you prompt examples, it's easy ;-)
Have fun liberating the power of sweet ahegaos in all your characters !