Not bad, not bad at all. The second one's kinda sweet in my opinion. However, gaining some more power into that kick wouldn't hurt. The first one, it's kinda slow and the kick looks slightly weak aswell. I think you should add some more speed and power into your hits. By doing that your hits get more "ooomph". Try working on gaining some additional power and momentum when making replays.
However, you got potential and with some practise, I'm sure you'll be alright
The second one was pretty unique, for some reason, I just didn't expect the kick.
But as Tempo has said, work on power and momentum.
Combine your lumbar/chest together with your glutes/hips and it should help.