Can you check my sentences for describing a film poster, please?

I described a film poster to practice my English. I would be gald if you gave me alternative words or expressions, but I would be thankful when you check my grammar or vocabulary. Thank you.

-This poster says "Hush, I am your grandmother!".

-A woman who looks young is wearing clothes and make-up which look old-fashioned in the right front.

-She is wearing a red skirt with a ribbon on the top of it and having her finger on her lips.

-There is an old lady behind the young old-fashioned girl.

-Actually, the old lady is the young girl's future look, not her grandmother! Don't ger her wrong!

-So the old lady looks happy while the others look shocked because she goes back to her twenty in the film.

-A man is behind the young past girl.

-He's wearing a tie. He looks tidy with it.

-He soon has a feeling for the girl. He doesn't know she is old. / He doesn't know her original look.

-On the left at the top, the young man with orange coloured hair is in a(his) band. / plays in a band.

-He is one of the grandmother's grandchild.

-The other is the girl with hair put up and surprised eyes who is beside him.