too bad the whole Kid FlashXJinx pairing will only be done in the Teen Titans show, hopefully they decide to make a Teen Titans Go episode with Jinx and Kind Flash...I was dissapointed with the episode opposites.
What might be cool is that whenever she invokes the "bad luck wave," her hair parts and stands up in two parts, looking like the ponytails she used to have. But shortly after releasing the wave, it falls back to what we see here. When user her powers, her hair stands on end. Literally. I think it would make for a cool visual effect.
I'll have you know that I love this adult design for Jinx of yours so much, I'm incorporating it into my personal headcanons, as I have her befriend an OC of mine in one of my fanfictions, and the two grow up together, to an extent. If I ever draw them as adults together, I'm going to link back to this design of yours to give you credit for it.