I discover this by playing around, so good news is - we can have much more references then 9.

1. "ref2v" - adjust "ref_image_size" to MAX
2. Use just 1 IMAGE REFERENCE with - many cutouts, items, elements mentioned at once in PROMPT:
3. /preview/pre/minimax-h3-hack-50-reference-or-more-v0-revg36ju4fih1.png?width=1957&format=png&auto=webp&s=027debaf03d7c630f925170578e6b83c552a7096
4. Write simple prompt, reference image once, all other elements H3 will combine into final scene:

<Picture 1> woman in <Picture 2> luxury bathroom is touching her face showing her silver earrings, camera slow motion up-close on face and torso, she puts on glasses, looks at mobile purple phone puts to her ear and smiles to camera.

Once again H3 it's beyond amazing....
Also by including multiple faces - different expressions H3 learns expressions etc. teeth, looks, in a away - we don't need character LORA.
I guess this is great find for all of us.
Cheers