Any suggestions on how to improve my power?

honestly that opener is crappy has hell

here sth i made out of boredoom with that

U were asked for help, not for show what can you do with that opener ^^

Anyways, try to contract left hip, and then extend knee, to kick the joint with foot, not with your knee.Also left rotate chest, extending leftpecs, contracting abs helps a lot.

I did a knee dm for you.