Maria, babysitting in Kingston upon thames

Dear Miss or Mister,
My name is Maria and I am writing in order to apply for your offer of babysitting your child.
I'm 22years old and I am from Spain but since one month ago I live in Kingston. I came here because last june I finished my degree as a Primary teacher and I wanted to improve my English and now I'm working as assitent teacher in Kingston.
I am very interested on your babysitting or part-time care, because first of all I love kids and I think it's a very interesting opportunity for my future if I could work as a nanny here.
In Spain I worked as a nanny for three years, also as an English teacher for the last two years. Five years ago I went to US to improve my English and I was living there for a year with a host family, so you can have references from them.
I really enjoy expending time with children, that's why I think it could be the perfect job for me.
Please if you need more information just let me know, also I can send my CV if needed.