I think it looks like her, and I think she looks really pretty.
Do you think she looked better in the last volume of GTO? Personally I think she looks much better now.
From the last panel of page 12 onwards, that's classic Shinomi right there. I mean take a look at the last panel on page 14 in particular. You can't say that doesn't look like the Shinomi we know and love
Might not be one of the things your hung up upon, but it can be expected a girl changes her hairstyle a bit in 6 or so years.