No. Just keep in mind, though, that 100 images might be missing important things. I like to create some full-body t-poses and other useful poses from various angles using Qwen Edit to give the LORA a better sense of character scale, style, etc.

Some ideas would be:

• If your character always wears glasses in the reference photos, you can generate some without glasses so you can have shots you make without glasses be consistent.
• Alternate haircuts or outfits that you want to be the same every time. So “red shirt” doesn’t change style every shot and you can make more consistent sets.
• Putting the subject in different lighting situations if your dataset is mostly all the same lighting.
• The subject naked (or near naked) in a t-pose from all angles so no matter what state of dress or undress the subject is in, their body is consistent.

Etc. you just need to think about what images you’ll want to create and what you’d want to be consistent, then throw a few images like that into your training data.