no disrespect to the poses, but the best way to see gyno is lowest bf, and front double bi shot. That has the muscle tigt, and streches the skin. Since the bf is low, the gyno will show real fast. The gif you show are just standing there.
Another is the feel of the nipple, its gonna hurt like a oinch or be soft-but hard center.
Nova clomed
Another is the feel of the nipple, its gonna hurt like a oinch or be soft-but hard center.
Nova clomed