You could try with that kick. If you want to get power, try reversing your movement before kicking (or doing pretty much anything). For example, if you have an extended hip and you decide to contract it for a kick, and a few frames later you extend the knee, it would be a much more powerful kick than if you just had it contracted the whole time and just extended the knee, like you did in the replay. Try to use most of your joints, not just a few.