How to tell what you are looking at - Basics
A girl's kimono has a narrow collar compared to a woman's kimono.
A naga juban has a thick collar that is made of a material that is quite different from the rest of the piece. They can be stiff
too.
Kimono for women and for girls have a slit in the sleeves. Mens kimono do not.
A furisode has long sleeves compared to other kimono