You are not the artist of this piece. Take it down or you will be reported as an art thief. It doesn't matter that you credit the original owner; you are posting it without permission under your own name with absolutely no artistic input.
Honestly, I don't think she haves permission but she gave credit to Kawiku. This is not art thief, she gave credit, she never said it was hers. This is clled reposting . I actually find it senseless and useless, but you can't blame her for anything.