the only thing that I see different is a gathering of his weight back or down if you like. First . Then a knee lift. Not just a picking up of the leg. That wouldn’t be optimal imo.This gif is a knee lift with good posture maintained. Look at the hinge in the back leg. Many on here say that is a “no no”. If you have good posture and pick your front knee up towards belly button without coming out of posture hip coil takes care of itself. No rearward movement