That is awesome!! Good job, you know my daughter is four yrs old, and just found she's autistic. I've been doing alot of things with her, somewhat like what you've been doing. She's very smart, loves to draw, read a book and big words, can write words and her name, loves music and intruments,she does soo much. She is unable to say words in sentences, so far I got three sentences, I'm working on trying to find a way to do more with her, to educate her and be around other children to watch and hear them talking to each other.
Well, all we can do is do the best we can to help and pray it'll accomplish for our child sake. It is very challenging work, and look at you, you did a very good job.:)