Good story.
Here are a few things that you should consider.
The writing started with you immediately noticing the girl. That seems to me as too sudden or too quick for any reader. Have you thought about making the transition a bit more smoother? How about making the first paragraph where you're minding your own business looking into the sky, reading a book, watching the water, flowers, birds, sun, clouds, etc... Then you turn around and notice the girl. That will give the reader a smooth transition in the story. Let the readers get in the mood that you're minding your own business and suddenly, you get their attention that something happened and make them wonder what's going on.
You mentioned "Deaf" (capital 'D'). How do you know if she is "Deaf" or "deaf". From a stranger's point of view, every deaf person is simply "deaf". If you were a deaf person talking about another deaf person that you knew and that deaf person takes pride or is strongly part of Deaf Culture, then you could label that person as "Deaf". However, in the story you've written... you're describing a little girl from a stranger's point of view... so, "deaf" would probably be better considering the audience that will be reading it.
Along with that part, you've used "Deaf" in the whole writing... including the end. By saying, "Deaf"... it sounds like a program only for those who are strongly immersed in Deaf Culture and not those who are "deaf". The whole paper seems to use that word from a general point of view and not a Deaf Culture point of view. That's why I think "deaf" would be better.
If your story was longer and you had different parts focusing on different aspects of deafness and one part talked about those that were deeply immersed in Deaf Culture, then the readers would begin to notice the differences between "Deaf" and "deaf".