So enjoyed this -- and it's no easy feat to write from the point of view of a child, but Jane comes through loud and clear and real. You present a clear and poignant picture of the predicament of being a child with so little power over the circumstances of her life. And the "magic" justice Jane wreaks is very satisfying :-)
Being a compulsive proofreader, I did catch this:
"He serves every happiness . . ." -- I think you meant to say "deserves" here, or did you intend "serves" (could be a Freudian slip on the part of loathsome Elena)?