Defense against a roundhouse kick in martial arts

I like the take down quite a bit. I actually teach this to my Goju-ryu Karate kids. The two young me in the video execute things pretty well here, however, the kid throwing the roundhouse kicks dropped his hands on the kicks, which made the follow up palm heel strike to easy. One note here, in the defense, is that if the kicker does keep is hands up you can take your counter palm heel strike to the chest or shoulder and still achieve a take down.