I'm guessing that Hellen is his own creation...I think the AC\DC font is what brought the attention. Even though it seems there's much worse 'infringement' that gets looked past by Stern
Quoted from Rickwh:
Without getting too deep into the "why" for stopping the other thread, aurich, are you able to use Helen's image/face/etc on a potential overlay/decal for the lower playfield? I would hope so, since that is your own design. I dont have an acdc, but your work is outstanding!