Withers doesn't turn his head properly when facing either direction. It is possible for the wither to turn his head too much to turn his head backwards without the body facing the way the head turns

Withers not turning their head and body properly And the head can turn back while the body does not follow the head.

Withers should rotate their head and body properly. and the head should not turn back And the body should follow the head in the direction of the withers looking.