I am just seeing lab as well. Especially with a breed like labs, they are so overbred/badly bred that often you get some anomalies that don't look particularly "labby"
I perhaps see some gsp in the ears.. but mastiff/cane? I highly doubt.
She seems to fine boned to be mastiff or cane, maybe dane, though?
How much did she weigh at 4 months? That's the age where most dogs are considered half their adult weight. And 5 months is usually when giant breeds are half their adult weight. Since she's 6mo and 55lbs, she's probably not going to mature over 100lbs at least!
Just from looking at the pictures I would say just lab. After meeting Liaka IRL, I think there is something else in there. Or she is going to be the biggest, stockiest purebred lab in the world
I doubt she has corso in here, but i wouldn't be surprised if there was some mastiff in there.
Lol pw you met her several inches and pounds ago. Shes HUGE! some pics i look at her face and see some sort of bully breed my dad thinks shes a greyhound mix... Dafuq?!? Lol