I think she looks fine. I can't tell you what ought to make you happy, but I think most parents of 9yo players would be 'softball happy' if their DDs' swings looked like that.
SoftSocDad, Thanks, and you're right. I am very pleased with her swing and progress. I guess I used the wrong wording...it's not the extension that I'm worried about but more where the bat finishes. I'm afraid that she's going to bop herself in the head.