>>2760545As long as the model doesn't have a heavily photorealistic bias, you will get anime girls by default. Pic rel is a test prompt for a batch of different models.
Hypernetworks are old-tech, forget about them.
LoRAs are the new tech for model extensions. To use them you just drop them into the appropriate folder, refresh the UI, and then add them to the prompt. LoRAs add things like different art-styles, specific characters, or items.
Building your own is heavily discussed over on /h/