Dear Z,
A thousand thanks for all your hard work, which has resulted in such an improvement over what we were expecting today! Anne-Marie has worked very hard, and was full of confidence, but you helped her put it all together.
I was completely thrilled to hear how much improved her scores were over the first scores she obtained at school.
We are so much more confident that she will get some good medical schools interviewing her now, and that you have really opened the doors for her future career. It means so much to her to be able to pursue her dream.