the default face is grumpy/angry for some reason. But this model was trained on variety of emotions, try "smiling, laugh,sad, crying, shouting, surprised, etc" in the prompt

This is niji midjourney 3d style, just play around with the weight and the prompt. Works better for square images

I already have this one for sd 1.5, doesn't look that much of a difference but SDXL can do hands and holding objects way better
https://civitai.com/models/81270

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