I think that BIG MOM is worth around 3 to 6M-Bounty.
I think that her devil fruit or natural power is venom/poison/acid/toxic...you know what im saying.
She seems to be huge with an oversized head that appeers bigger then her body.
She seems to be wearing a dress with polka-dots on them and.
One of the four emperors: The Great Pirate "BIG MOM" aka Charlotte Linlin