sure doesn't looks like you're new to art! These are some great drawings, better than anything I've ever made :MeilingThumbsUp:
But you asked for feedback, so I'll stop with all this flattery. First, Nitori's head shape looks a little rigid. Try smoothing out the corners and maybe even drawing her face narrower. Second, the legs for "Wriggle Kick" seem out of proportion/perspective. Hard to notice at first sight, but it does look strange being half 2D half 3D. Still, these minor imperfections are the type of things that only get corrected through experience, not some huge shift in technique. So keep at it, I think you have a talent for this.
One final note, I love the simple style, especially daiyousei and byakuren :). I've always wanted to make a small comic with an artstyle like that.