Not to start an argument, just to express an opinion, since what is considered 'mannish' still depends on a number of factors and perspectives.
I consider there to be a wide range of what's considered a tomboy, and what could be considered mannish largely depends on the angle a person is coming from. In modern main stream american culture, many traits that used to be considered tomboyish are not considered that anymore, but they are in my culture, and many of the characters in the story Judith (from the op) is from are conservative and/or immortal, growing up in eras with a sharp stigma for what was acceptable for women.
I consider myself a combination of tomboy and girly girl, like Judith, which is why I like to represent different ocs as different kinds tomboys as well. I think women can have a combination of traditionally masculine and feminine traits while their attitudes sometimes lean in one direction or another, hence, Judith leaning toward tomboy despite her traditionally feminine way of dressing.
Many parts of Judith's personality lean toward what is considered traditionally masculine, even beyond what was mentioned in the op (because I don't want to promote the cliche that all men are aggressive, but it's generally not considered feminine either, and she is very aggressive.)
In the culture I grew up in (and I am only 19) my personality is still considered anti-feminine for desiring independence, valuing my strength, etc. It all depends on the angle you come from, and you really can't limit the word to one perspective of how the world has changed or developed. Honey, in a ton of ways and places, it really hasn't.
So we may not be in the 1965s anymore, but you might be surprised at the way some people still view a woman's role and many of the characters in the OPs story are of this mindset.
I'd also like to represent a wide range of what could be considered a tomboy beyond the cliche. The fashion is great, but there's more to being a tomboy than clothing too, in my arrogant opinion as a woman who still considers herself a tomboy.
So, hey, it may be a fairly outdated term, but it's still used and can be applicable even for a girl who dresses in a traditionally feminine way for a number of reasons. (And actually, some people do consider girl bosses masculine, hence, tomboyish)
So yes, she may have long hair, lipstick, a ruffled blouse, etc, or look like a librarian. But that's still limiting the idea of a tomboy to an aesthetic, and there's more to a person's personality than fashion alone.
There are any number of ways a woman can break from the mold/standard of what society expects them to be, and that is how I personally define a tomboy. A woman breaking away from the traditional gender standard (or even a portion of the standard) imposed on them. A picture doesn't give anyone a chance to get to experience her personality either.
Just my perspective on the topic. Honestly, so many portions/groups/cultures of the world are still operating on the "outdated" standard. And there is for sure more that makes Judith a "tomboy" (in air quotes) than what was mentioned in the OP. I admit, I didn't describe her very well, which may be the cause for confusion. But I don't want to turn it into an essay either lol
