With that looks we dont need to think longer than a look alike of Maine Coon.
(How big is she, how much does she weigh?)
Just do like the old writer and big humorist Mark Twain said he did when he got a pic of a look alike of him: he said he used that pic instead of a mirror when he would shave himself.
The problem are the litter mates, who are totally different in type.
One of the cases where we are almost believing on the tale there may be several different fathers to a litter.
(which IS possible, but not so often happening as many thinkd).
All three cats are gorgious, each in theirs type...
She's only about 11 lbs. I fostered her and her 4 other siblings when they were 5 days old. Her brother (the bigger black cat in the second picture) is about 17 lbs. Two of them got adopted out, I kept two, and my parents kept one. There were three black, two were shorthair and one was long hair (looks like a Maine Coon but all black), and there were two that look like Maine Coons. Very strange family.