While all the obvious problems are obvious, the real issue is the complete failure of anatomy here.

Dude has a body with such uneven fat distribution it boggles the mind. Face of a chubby to obese man, biceps of a lanklet and then a skinny fat midsection. It immediately triggers the uncanny valley.

So its one thing to just make Aloy fat. Its another to fuck up character design on both an aesthetic AND defining logic level.