This is the 18470th most frequent Russian word.
юную
"Юную" means "young" (feminine, accusative case) in English.
In this case, 'юную' is used to describe the youthfulness of a female artist.
Мы встретили юную художницу на выставке.
We met a young artist at the exhibition.
Here, 'юную' refers to a girl who reads and is still young in age.
Она подарила эту книгу юную читательницу.
She gifted this book to a young reader.
The adjective 'юную' is used to describe a youthful female actress.