He goes around the ball on the last swing. I don't think that has anything to do with his head movement. His bat gets flat early. He drops and sweeps. I don't see a lot of perfect swings. I like him. He gets rotation, has that slight knee turn in. He is fairly much locked when the rotation starts.
Like I've said before, his head movement will be how much he starts off center plus 1/2 his stride length. He does keep his foot close to the ground as he strides.
The world is going to shorter strides and longer bases. When he strides and his head goes forward his hands stay back, at least to some degree. He does keep enough bend in his elbows.
He looks physically strong. You gotta love metal for pulling an outside pitch for a base hit.